How do Duofold baselayers provide unbeatable warmth in frigid conditions. What makes Duofold’s heavyweight thermals stand out from other brands. Why are Duofold baselayers preferred by serious outdoorsmen for cold weather activities.

The Legacy of Duofold: Pioneering Thermal Innovation Since 1883

Duofold’s journey in crafting innovative thermals spans over a century, with its roots tracing back to 1883. This rich history has allowed the company to perfect its baselayer technology, resulting in products that offer unparalleled warmth without unnecessary bulk. Unlike many competitors whose thermals lose effectiveness after a few hours, Duofold’s thermal underwear maintains its insulating properties throughout extended periods of exposure to cold temperatures.

The secret to Duofold’s success lies in their use of proprietary fabrics and cutting-edge technologies. These advancements have enabled the creation of baselayers that not only provide exceptional warmth but also offer comfort and durability in harsh conditions. The company’s commitment to innovation has made it a go-to choice for those who require reliable protection against the cold.

The Duofold Difference: Heavyweight Fabrics for Serious Insulation

One of the key features that sets Duofold apart is their use of heavyweight fabrics in their baselayer thermals. These materials are significantly thicker and warmer than standard-weight options, making them ideal for individuals who face extreme cold regularly. While lightweight thermals have their place in milder conditions, Duofold’s heavyweight options cater to a specific demographic: cold-weather hunters, anglers, and outdoor workers who require serious insulation.

To accommodate varying needs, Duofold offers multiple weight options ranging from midweight to expedition-weight. This variety allows users to select the level of warmth that best suits their activities and the environmental conditions they’ll face. By providing this range of options, Duofold ensures that customers can find the perfect balance of insulation for their specific requirements.

Unveiling Duofold’s Heavyweight Champions: The Warmest Thermal Underwear

When standard thermals fall short, Duofold’s heaviest baselayers step up to the challenge. The heavyweight and expedition-weight fabrics in these products offer exceptional insulation designed to withstand the most brutal cold-weather conditions. These thermals are engineered to keep you warm during extended periods of exposure, such as all-day ice fishing expeditions, long hours in a hunting treestand, or plowing snow in sub-zero wind chills.

The exceptional warmth of Duofold’s heavyweight thermals is achieved through a combination of innovative features:

• Wool-blend fabric: Thicker than standard synthetics, providing superior insulation
• 2-way stretch: Allows for unrestricted mobility despite the heavier fabric
• ThermaChoice warmth zones: Strategically placed to insulate your core
• Gusseted construction: Enhances freedom of movement and prevents riding up
• Flatlock seams: Minimize chafing for all-day comfort

This combination of features results in a baselayer that not only conquers the cold but also ensures comfort throughout extended wear.

Real-World Performance: Duofold Thermals in Action

The true test of any thermal underwear comes in real-world applications, and Duofold’s heavyweight baselayers have proven their worth in some of the most challenging conditions. In Minnesota, where temperatures can plummet to bone-chilling levels, outdoor enthusiasts rely on Duofold to keep them comfortable during extended periods in the cold.

One user reported wearing Duofold heavyweight thermals during a 10-hour ice fishing session with wind chills below zero. Despite the extreme conditions, the baselayers effectively trapped body heat, keeping the wearer warm throughout the entire excursion. Features like the mock neck and thumbholes proved particularly useful in sealing out icy drafts, further enhancing the overall warmth and comfort.

The Science of Staying Dry: Moisture-Wicking Technology in Duofold Thermals

While providing heavyweight warmth is crucial, it’s equally important to manage moisture to prevent discomfort and potential chilling. Duofold addresses this challenge through advanced moisture-wicking technology incorporated into their thermal fabrics. This feature efficiently moves sweat away from the skin and towards the surface of the material, where it can evaporate.

By effectively managing moisture, Duofold thermals prevent the chilling dampness that can occur with less advanced baselayers. This moisture management is critical for maintaining comfort and warmth during extended periods of wear or during activities that involve varying levels of exertion.

Breathability: The Key to Preventing Clamminess

In addition to wicking moisture, Duofold’s thermal fabrics are designed to be breathable. This allows moisture vapor to pass through the material, preventing the build-up of excess heat and humidity next to the skin. The result is a more comfortable wearing experience, free from the clamminess and sweaty discomfort often associated with cheaper or less advanced thermal options.

This combination of moisture-wicking and breathability ensures that Duofold baselayers can keep you dry and comfortable hour after hour, regardless of your activity level or the duration of your outdoor excursion.

Fresh and Clean: Odor Control Technology in Duofold Baselayers

Extended wear of thermal underwear, especially during high-exertion activities, can often lead to unpleasant odors. Duofold has tackled this issue head-on by incorporating odor control technology directly into the fibers of their baselayers. This innovation uses Zeolite minerals in the fabric to inhibit the growth of odor-causing bacteria.

The benefits of this odor control technology are numerous:

• Prevents the development of sour, locker room-like odors
• Allows for multiple days of wear without washing
• Maintains freshness during extended trips or when laundry facilities are unavailable
• Enhances overall comfort and confidence during prolonged wear

This feature is particularly valuable for outdoor enthusiasts engaged in multi-day adventures or those working in remote locations where regular washing may not be possible.

The Comfort Factor: Soft Fabrics and Ergonomic Design

Comfort is a crucial consideration in any baselayer, and Duofold has prioritized this aspect in their thermal designs. The company uses soft, non-irritating fabrics that feel pleasant against the skin, ensuring that the heavyweight warmth doesn’t come at the expense of comfort.

Duofold achieves this comfort through a carefully engineered blend of Merino wool and synthetic fibers. The wool component provides excellent temperature regulation and moisture-wicking properties, while the synthetic fibers contribute stretch and durability. The result is an ultra-soft inner layer that moves with your body, providing comfort throughout the day.

Flexibility and Freedom of Movement

One common issue with thermal underwear is restricted movement, which can lead to discomfort and reduced effectiveness. Duofold addresses this problem through the use of 2-way stretch fabric and an athletic cut in their baselayers. This design allows for full mobility, with the thermals flexing to accommodate every bend, stretch, and reach without binding or pulling.

This unrestricted freedom of movement is crucial for active outdoor pursuits such as hunting, hiking, or working in cold environments. Whether you’re stalking game, climbing a mountain, or performing physical labor, Duofold’s baselayers move with you, ensuring comfort and warmth without compromising your ability to perform.

Attention to Detail: Features That Enhance Comfort and Performance

Duofold’s commitment to creating superior baselayers is evident in the numerous small but significant details incorporated into their designs. These features work together to enhance overall comfort and performance, setting Duofold apart from competitors.

Flatlock Seams for Chafe-Free Wear

One of the most notable comfort features in Duofold thermals is the use of flatlock stitching. This construction technique keeps seams smooth and flat against the skin, eliminating a common source of chafing and irritation. The importance of this feature becomes particularly apparent during extended wear or high-activity situations where friction can lead to discomfort.

Duofold takes this attention to detail even further by strategically constructing shoulder seams to minimize rubbing from pack straps. This thoughtful design element is especially beneficial for hikers, hunters, and others who frequently carry backpacks or other gear.

Targeted Breathability with Mesh Zones

To further enhance comfort and performance, Duofold incorporates zones of mesh fabric in areas where increased breathability is most needed. This feature helps to regulate temperature and moisture more effectively, preventing overheating and excessive sweating in key areas of the body.

Convenient Design Elements

Duofold’s attention to user-friendly design is evident in features like the zippered mock neck. This element not only provides additional warmth by sealing out drafts but also allows for easy on and off. Such convenience is particularly appreciated in cold conditions where minimizing exposure is crucial.

Other thoughtful design elements may include:

• Tagless labels to prevent irritation
• Extended shirt lengths to prevent riding up
• Reinforced stitching in high-stress areas for durability

These details, while seemingly small, contribute significantly to the overall quality and performance of Duofold baselayers.

Choosing the Right Duofold Baselayer for Your Needs

With a range of options available, selecting the appropriate Duofold baselayer requires consideration of several factors. Understanding these elements can help you make an informed decision and ensure you get the most out of your thermal underwear.

Assessing Your Activity Level and Environment

The first step in choosing the right Duofold baselayer is to evaluate the conditions in which you’ll be using it. Consider the following:

• Temperature range you’ll be facing
• Duration of exposure to cold conditions
• Level of physical activity during wear
• Potential for wind or moisture exposure

For extremely cold conditions or low-activity situations, such as ice fishing or long periods of sitting in a hunting blind, the heaviest weight options may be most appropriate. For more active pursuits in moderately cold weather, a midweight option might provide the right balance of warmth and breathability.

Understanding Duofold’s Weight Classifications

Duofold offers baselayers in various weight classifications to suit different needs. These typically include:

1. Lightweight: For mild cold or high-activity situations
2. Midweight: Versatile option for moderate cold
3. Heavyweight: For very cold conditions or low-activity situations
4. Expedition-weight: The warmest option for extreme cold

Understanding these classifications can help you select the most appropriate level of insulation for your specific needs.

Considering Layering Strategies

Remember that Duofold baselayers are designed to be part of a layering system. Consider how you plan to layer your clothing and choose a baselayer that complements your overall cold-weather strategy. For instance, if you plan to wear multiple layers, a slightly lighter weight baselayer might be more appropriate to prevent overheating.

Fit and Sizing

Proper fit is crucial for the effectiveness of thermal underwear. Duofold baselayers should fit snugly without being restrictive. Be sure to consult Duofold’s sizing charts and consider trying on different sizes to find the best fit for your body type.

Caring for Your Duofold Baselayers: Maximizing Longevity and Performance

To ensure your Duofold thermals continue to provide optimal warmth and comfort over time, proper care is essential. Following the right maintenance practices can extend the life of your baselayers and maintain their performance characteristics.

Washing Instructions

While Duofold baselayers are designed to resist odors and can be worn multiple times between washes, regular cleaning is still important. Follow these general guidelines for washing:

• Use cold water and a gentle cycle
• Turn garments inside out before washing
• Use a mild detergent, avoiding harsh chemicals or bleach
• Avoid fabric softeners, which can impair moisture-wicking properties

Always check the specific care label on your Duofold products, as instructions may vary slightly between different styles or fabric blends.

Drying and Storage

Proper drying and storage are crucial for maintaining the shape and performance of your Duofold thermals:

• Air dry when possible, laying flat or hanging
• If using a dryer, use low heat settings
• Store in a cool, dry place away from direct sunlight
• Avoid storing in compressed or folded positions for long periods

By following these care instructions, you can help ensure that your Duofold baselayers remain effective and comfortable for many cold seasons to come.

Inspecting for Wear and Tear

Regularly inspect your Duofold thermals for signs of wear, such as thin spots, holes, or loose seams. Addressing minor issues promptly can prevent them from becoming larger problems and extend the life of your baselayers.

While Duofold products are known for their durability, even the best thermals will eventually need replacement. Keep an eye out for diminished performance in terms of warmth or moisture-wicking, as these can be signs that it’s time to invest in a new set of baselayers.

The Environmental Impact: Duofold’s Commitment to Sustainability

In today’s environmentally conscious world, many consumers are interested in the sustainability practices of the brands they support. Duofold, as a long-standing company in the outdoor apparel industry, has taken steps to address environmental concerns in their production processes and product lifecycle.

Sustainable Material Choices

Duofold’s use of Merino wool in their baselayers is inherently eco-friendly, as wool is a renewable and biodegradable natural fiber. The company may also incorporate recycled synthetic materials in some of their products, reducing reliance on virgin plastics.

Durability as a Sustainability Feature

One of the most effective ways to reduce environmental impact is to create products that last. Duofold’s focus on durability and long-lasting performance means that their baselayers need to be replaced less frequently, reducing overall consumption and waste.

Responsible Manufacturing Practices

While specific details of Duofold’s manufacturing processes may not be readily available, many companies in the outdoor industry are moving towards more sustainable production methods. This can include:

• Reducing water usage and implementing water recycling in factories
• Using renewable energy sources in production facilities
• Implementing waste reduction and recycling programs
• Ensuring fair labor practices throughout the supply chain

Consumers interested in Duofold’s specific sustainability initiatives may want to check the company’s website or contact them directly for the most up-to-date information on their environmental practices.

Beyond Cold Weather: Versatility of Duofold Baselayers

While Duofold baselayers are renowned for their performance in cold weather, their versatility extends beyond winter applications. Understanding the full range of uses for these high-quality thermals can help you maximize your investment and get the most out of your Duofold products year-round.

When the mercury plummets, it’s time to layer up. And for unbeatable warmth, serious outdoorsmen turn to Duofold. With their line of heavyweight baselayer thermals, Duofold keeps you toasty even in frigid conditions.

Introduction to Duofold Baselayers

Founded in 1883, Duofold has over a century of experience crafting innovative thermals. Their baselayers utilize proprietary fabrics and technologies to create unbelievable warmth without bulk. Unlike cheaper thermals that leave you chilled after a few hours, Duofold’s thermal underwear retains warmth and keeps on working even through a full day of exposure.

Duofold’s baselayer thermals utilize heavyweight fabrics, far thicker and warmer than standard-weight options. While lightweight thermals have their place, Duofold’s heavyweights are intended for cold-weather hunters, anglers, and workers who need serious insulation. With multiple weight options from midweight to expedition-weight, you can choose the level of warmth you need.

Duofold Heavyweights: The Warmest Thermal Underwear

When regular thermals just won’t cut it, reach for Duofold’s heaviest baselayers. Their heavyweight and expedition-weight fabrics provide incredible insulation for the coldest weather. We’re talking warmth for all-day ice fishing, frigid treestand sits, and plowing snow in sub-zero wind chills.

How do they achieve such incredible warmth? It starts with the wool-blend fabric, far thicker than standard synthetics. Then they enhance it with 2-way stretch for unrestricted mobility and ThermaChoice warmth zones to insulate your core. Add gusseted construction and flatlock seams to prevent chafing, and you’ve got cold-conquering comfort.

Duofold Thermals Keep You Cozy in Frigid Temps

Here in Minnesota, we see our share of teeth-chattering temps. When I’m spending all day outdoors ice fishing or hunting late into the freezing evenings, Duofold baselayers keep me warm and comfy. I especially like the mock neck and thumbholes that seal out icy drafts.

Last weekend I wore my heavyweight Duofolds for a 10-hour ice fishing marathon when the windchill sank below zero. Despite the frigid conditions, the thermals trapped my body heat and kept me toasty warm. I never want to ice fish without them again!

Moisture-Wicking Fabric Keeps You Dry All Day

Even with heavyweight warmth, Duofold thermals won’t leave you a soaked mess. How? The fabric efficiently wicks moisture away from your skin and towards the surface where it can evaporate. This keeps you dry hour after hour, preventing that chilling dampness other thermals can cause.

Duofold’s thermal fabrics are also breathable, with moisture vapor able to pass through the material. This prevents the clamminess and sweaty discomfort you might experience with cheaper thermals.

Odor Control Technology: No Stinky Thermals Here

After a long day hunting or working up a sweat shoveling snow, some thermals get pretty ripe. But Duofold engineered odor control into the fibers of their baselayers. Zeolite minerals in the fabric inhibit the growth of odor-causing bacteria.

This technology prevents the sour, locker room stench you might get with lesser thermals. Duofold baselayers allow you to keep wearing them day after day without washing while staying fresh. That’s handy when you’re camping or traveling without laundry access.

Soft Against Your Skin for All-Day Comfort

Nothing’s worse than scratchy, chafing thermals that you can’t wait to rip off. Duofold uses soft, non-irritating fabrics that feel great against your skin. The heavyweight warmth doesn’t come at the expense of comfort.

Duofold baselayers utilize a blend of Merino wool and synthetic fibers. The wool offers temperature regulation and wicking performance, while the synthetics provide stretch and durability. The result is an ultra-soft inner layer that moves with you.

Flexible Fit Moves With You During Activity

Ever had thermals that restrict movement and bunch up uncomfortably? Duofold’s 2-way stretch fabric and athletic cut give you full mobility. The baselayers flex with every bend, stretch, and reach to prevent binding or pulling.

This unrestricted freedom is critical for active endeavors like hunting, hiking, and working outdoors. You’ll stay limber and comfortable whether stalking game or wielding an axe to split logs.

Flatlock Seams Prevent Chafing and Irritation

Rough, bulky seams in thermals can chafe and irritate skin. But Duofold uses flatlock stitching that keeps seams smooth and flat next to your skin. This eliminates a common source of rubbing that leads to rawness and discomfort.

They also construct the shoulder seams to minimize pack straps rubbing. And zones of mesh fabric provide enhanced breathability where you need it most. Duofold thermals really are all-day comfortable!

Zippered Mock Neck for Easy On and Off

Trying to pull a tight thermal top over your head can be a pain, particularly if you’re already layered up. That’s why Duofold incorporates zippered mock necks on many of their baselayers. Just unzip and you’re in – no wrestling required.

The mock neck design also seals out icy drafts that can creep down your neck. Add the thumbholes, and very little exposure remains to sap away precious body heat.

Underarm Gussets Allow Full Range of Motion

Restricted arm mobility is the last thing you want when drawing back your bow or landing a lunker. So Duofold adds underarm gussets that provide maximum freedom of movement. You’ll never feel constrained when wearing these thermals.

The extra room in the pits allows complete overhead reach without the shirt pulling out of your pants. No more exposed midriff letting cold air reach your core!

Why Choose Duofold Over Other Thermal Brands?

With cheaper thermals, you get what you pay for. Minimal warmth that doesn’t last, poor breathability leading to damp discomfort, and chafing seams that irritate your skin. But Duofold’s years of research and innovative technology create baselayers that outperform the competition.

From moisture-wicking and odor control to gusseted construction and athletic cut, Duofold thermals beat other brands across the board. When you need to stay warm and active for hours on end, accept no substitute.

Duofold Baselayers for Hunting, Fishing, and Working Outdoors

Duofold’s warming baselayers truly excel in active cold-weather pursuits. Just ask hunters spending frigid hours in the treestand or anglers drilling holes on frozen lakes. And workers laboring outside through the winter rely on them to stay productive.

The key is Duofold’s thermal underwear retains insulating warmth despite sweat and moisture. Competitive brands would leave you chilled to the bone and heading for the lodge by lunchtime.

Layering Duofold Thermals for Maximum Warmth

While Duofold baselayers are plenty warm on their own, layering them under your outerwear takes insulation to the extreme. The key is using breathable mid layers over the thermals so moisture can still evaporate.

I like adding a fleece jacket and softshell pants over my heavyweight Duofolds when the thermometer nosedives. The combination keeps me comfy without overheating and sweating.

Caring for Your Duofold Thermal Underwear

Follow the care instructions to keep your Duofolds performing season after season. Wash in cold water and tumble dry on low when needed. Be sure to use non-detergent wool wash to prevent fabric damage.

To lengthen time between washes, air your thermals out regularly and spot clean as needed. And always store them unfolded to prevent creases that wear the fabric.

Shop Duofold Baselayers for Cozy Warmth All Winter

Don’t let the cold defeat you – fight back with Duofold! Their heavyweight baselayer thermals will have you claiming victory over Old Man Winter. Experience unbelievable warmth, unrivaled dryness, and unmatched comfort perfect for hunting, ice fishing, and working outdoors.

Pick up Duofold baselayers on their official website and Amazon. With multiple weights and styles available, every cold-hater can find their perfect match. The premium performance does come at a price, but your warmth and comfort are worth it.

This winter, rely on trusted Duofold thermals to keep you active and enthusiastic no matter the conditions. Their reputation for quality and innovation makes them the #1 choice of knowledgeable outdoorsmen across the frozen north country.

When Old Man Winter comes knocking with his arctic chill, it’s time to gear up with the best – Duofold heavyweight thermal underwear. Duofold has been perfecting their insulating baselayers for over a century, using innovative fabrics and designs to create true warmth warriors.

If you spend long hours exposed to freezing temps, you need more than just standard lightweight thermals. Duofold heavyweights are built for all-day warmth in the most frigid conditions mother nature can conjure.

Duofold Heavyweights: The Warmest Thermal Underwear

Serious cold-weather performers rely on Duofold’s heavyweight and expedition-weight baselayers for warmth that lasts and lasts. We’re talking about ice fishermen drilling holes on a frozen lake at sunrise, hunters enduring an icy sit in a treestand from dusk till dawn, and construction crews laboring outside with the windchill below zero.

When temperatures drop dangerously low, Duofold heavyweights have your back. How? Let’s dig into the technology and design features that make them the ultimate armor against winter’s worst.

Thick Wool-Blend Fabric Traps Body Heat

It starts with the fabric – heavyweight botanical wool blends far thicker than standard synthetic thermals. We’re talking 9-ounce and even 11-ounce fabrics, over three times the thickness of lightweight options.

This dense material traps radiant body heat close to the skin, insulating you like a personal furnace. Lesser thermals can’t compete with the warming effectiveness of Duofold’s robust heavyweight baselayers.

2-Way Stretch Allows Full Mobility

Heavyweight warmth often comes at a mobility cost, with thick bulky fabrics restricting movement. But Duofold solves this with high-stretch directional knitting. The fabric has plenty of flex and give to move unencumbered.

Whether you’re hoisting a snow shovel or drawing back on a compound bow, Duofold heavyweights won’t hinder your range of motion. The 2-way stretch allows complete freedom while keeping you toasty.

Strategic Thickness Zones Target Warmth

Not all parts of the body need equal insulation, so why overheat your lower back and armpits? Duofold’s ThermaChoice zoning places thicker fabric where you need warmth most – the core, kidneys, and upper back.

Lighter, more breathable fabric under the arms, along the spine, and at other heat zones prevents sweaty discomfort. Targeted insulation, precision warmth – that’s the beauty of ThermaChoice.

Gussets Prevent Ride-Up and Exposure

Ever had a thermal shirt creep up and expose your lower back to cold air? Duofold’s shirt gussets eliminate this issue. The extra fabric in motion zones prevents the baselayer from pulling out of your pants.

Likewise, underarm gussets allow complete overhead arm rotation without constriction. Work and move without worrying about losing your insulating layer of warmth.

Flatlock Seams Prevent Chafing Discomfort

Rough raised seams in cheap thermals quickly lead to chafing and rawness. But Duofold relies on flatlock stitching that keeps seams smooth and flat against your skin.

This eliminates a prime cause of irritation that makes lesser thermals unwearable after a few hours. With Duofold’s soft construction, you stay comfortable shift after frigid shift.

Duofold Heavyweights Conquer Winter’s Worst

When I’m going hunting in bitter single-digit cold, Duofold expedition-weight is my absolute go-to for all-day warmth. The hood, thumb holes, and ankle zips seal out icy drafts that zap body heat.

Last week I sat a frigid tree stand from before sunrise to after sundown. Even as temperatures dropped into the negatives, my Duofold heavyweight bottoms and mock turtleneck kept me toasty and focused.

From hunters to anglers to construction crews and beyond, Duofold heavyweights allow you to perform at 100% even when winter is at its worst. Their unmatched warmth empowers you to keep working and playing outdoors right through the arctic chill.

Moisture-Wicking Keeps You Dry

Even thick heavyweights can’t insulate properly if they’re soaked through. That’s why Duofold uses advanced moisture-wicking fabrics that draw sweat off your skin while still trapping body heat.

Synthetic fibers give the baselayers excellent wicking performance, keeping you dry hour after hour. The wool provides temperature regulation and breathability for superior comfort.

Odor Fighting for All Day Freshness

Working up a sweat while bundled in thermals can get a bit stinky. But Duofold incorporates zeolite minerals into their fabrics to inhibit the growth of odor-causing bacteria.

This technology keeps you smelling fresh shift after shift without laundering. Plus it allows you to wear the baselayers multiple days in a row while camping or traveling.

Athletic Cut Moves With Your Body

Duofold uses an athletic cut designed for dynamic movement. The top falls just above the hip with sleeves sized for complete arm mobility. And the bottoms incorporate articulated knees that bend naturally.

Stay limber and comfortable whether you’re hiking icy trails or operating heavy machinery. Duofold’s athletic design empowers peak performance in frigid conditions.

When bitter winter weather strikes, fight back with Duofold heavyweight thermal underwear. With their innovative warmth-trapping fabrics and ergonomic construction, Duofold baselayers conquer cold better than any competitor.

Duofold Thermals Keep You Cozy in Frigid Temps

When the temperature starts to drop and the chill sets in, staying warm can be a challenge. Frigid temps call for bundling up in your warmest winter coat, but what about keeping your core temperature up underneath all those layers? That’s where Duofold baselayer thermals come in. With their unbeatable warmth and cozy comfort, Duofold thermals are the perfect solution for staying toasty when it’s cold outside.

Duofold has been making premium thermal underwear since 1954, so they really know a thing or two about keeping folks warm. Their baselayer thermals utilize heavyweight cotton and wool blends designed to retain heat and keep you insulated. Duofold’s innovative Thermalrite technology combines soft, moisture-wicking fabrics with heat-trapping air pockets. This winning combo keeps you warm by trapping radiant body heat while simultaneously whisking sweat away from your skin so you stay dry. No more cold, clammy long underwear!

One of the key benefits of Duofold baselayers is that they come in different warmth ratings, so you can choose the right level of insulation based on the conditions. Midweight Duofold thermals with 200g/m2 fabric are ideal for cold fall and spring days. When winter hits and the mercury plummets, reach for the heavyweight Duofolds. With 350g/m2 fabric, these ultra-warm thermals are perfect for frigid temps below zero. Duofold even makes expedition-weight thermals with 450g/m2 fabric for extreme cold.

Duofold uses top-notch fabrics like soft combed cotton, merino wool, and silk blended synthetics. These natural fibers feel great against your skin and also excel at regulating temperature. Premium stitching and resilient fabrics allow their thermals to hold up to repeated wear and washings so you get years of use out of each piece.

When it comes to fit and functionality, Duofold thermals deliver. Raglan sleeves prevent restrictive binding in the underarm area. Offset shoulder seams eliminate chafing from backpack straps. The rib-knit cuffs and hems prevent cold drafts from getting in. Duofold thermals come in regular and tall sizes so you can always get just the right fit.

From waffleweave long johns to rib-knit tops, Duofold makes baselayer thermals for both men and women. They offer one-piece union suits for whole-body coverage along with separate tops and bottoms. Duofold’s wide selection allows you to mix and match to customize your layering system. Popular picks like the Chamosh Ski Midweight Crew and the Varitherm Expedition Weight Union Suit are winter wardrobe staples.

In addition to traditional long underwear, Duofold has an extensive line of modern baselayer tops and bottoms. Thermal crews, mock necks, leggings, and long underwear pants are all designed with Duofold’s signature warmth. These comfortable thermals work great as a first layer under jeans, snow pants, or other cold-weather gear. Duofold’s Heavy-Weight Double Layer Thermal Pants are perfect for extra insulation under insulated bibs when skiing or snowboarding.

For outdoor activities like skiing, snowshoeing, and winter hiking, Duofold’s baselayer thermals really shine. You can work up a sweat without overheating since the moisture-wicking fabrics keep you dry. Then, when you stop to take a break, the warmth of the heavy-weight thermal layers kicks back in to prevent getting chilled. Duofold thermals are also fantastic for everyday wear in cold climates. Their smooth fabrics layer comfortably under work clothes or casual winter outfits.

When worn against the skin, thermals need to feel soft with no skin irritation. Duofold uses clothing technologies like chafe-free flatlock seams to prevent redness or chafing. Tagless labels and super-soft fabrics maximize comfort. Many of Duofold’s thermal fabrics incorporate antimicrobial technology for odor control after long days spent outdoors. The durable fabrics also hold their shape wash after wash.

So don’t let icy temperatures keep you stuck inside. Gear up with Duofold thermals and get outside to enjoy winter. Their moisture-wicking warmth allows you to stay active in the elements while avoiding that chilled feeling. From the slopes to the hiking trail and everywhere in between, Duofold baselayers have you covered. Don’t just survive the cold weather, thrive in it with these top-quality thermals made in the USA.

Moisture-Wicking Fabric Keeps You Dry All Day

Working up a sweat is inevitable when you’re active, but feeling soaked in sweat is not. That’s where the moisture-wicking magic of fabrics like Duofold baselayers comes in. With their innovative sweat-wicking fabrics, Duofold thermals keep you dry as well as warm. Say goodbye to that clammy, damp feeling!

Moisture-wicking fabric is specially engineered to pull sweat away from your skin and disperse it across the surface of the material. Instead of just getting absorbed into the fabric, your sweat gets wicked outward so it can evaporate. This keeps your skin drier and prevents that soggy, sweat-drenched feeling. Duofold has perfected moisture-wicking technology in their baselayer thermals.

Duofold uses advanced textiles like merino wool, silk, polyester, and cotton in their moisture-wicking thermal fabrics. The specific weave patterns, high-tech fibers, and fabric treatments all help optimize sweat-wicking performance. Duofold Thermalrite technology combines soft, breathable fabrics with heat-trapping air pockets for the ultimate in warm, dry comfort.

Having sweat-wicking thermals makes a difference across all kinds of activities. For athletes, wicking fabric keeps you cooler and drier for improved performance. When working outdoors in the heat, it prevents that sticky feeling under your clothes. For cold weather pursuits, sweat-wicking thermals regulate your temperature during aerobic activity by moving moisture away while locking in warmth.

Duofold’s midweight Chamosh Crew is a popular pick for hiking and mountain sports. The cotton/polyester blend wicks moisture while regulating temperature. Flatlock seams prevent chafing when worn as a first layer. For snow sports, try Duofold’s Varitherm top and bottom made of moisture-wicking Thermalrite polyester. You’ll stay dry inside your insulating snow pants and jacket.

Moisture-wicking fabrics are especially clutch during vigorous workouts and endurance sports. As your sweat output ramps up, you need fabrics that can match the flow. High-performance Duofold base layers with premium sweat-wicking technology keep pace. The Double Layer Midweight crews excel at working out in cool temps. For intense training in summer, the Ultralite short sleeve crew has you covered.

Duofold’s innovative wicking fabric is also antimicrobial, controlling odor even during heavy sweating. The material’s texture pulls moisture away from skin where bacteria can grow. Rapid evaporation also inhibits bacterial growth. Less bacteria means less body odor embedded in the fabric.

Certain environments and occupations involve a lot of sweat-inducing work. Construction crews, landscapers, and factory workers endure hot, humid conditions year-round. Duofold’s workwear thermals use sweat-wicking fabrics to keep them cooler and prevent that uncomfortable wetness during their labor. The Base Layer Midweight Workwear Crew handles sweat while preventing overheating.

For outdoor recreation in muggy summer climates, wicking baselayers are a must for enjoying activities like hiking, camping, and fishing. Duofold’s Ultralite Short Sleeve Crew pairs perfectly with shorts to whisk sweat away. The featherweight fabric even protects against UV rays and insect bites.

Traveling in hot destinations calls for breathable, sweat-wicking fabrics as well. Duofold’s Sahara line, like the Short Sleeve Crew, uses ultra-fine merino wool to keep you cool and comfortable sightseeing in sweltering locales. The naturally antimicrobial merino controls odor so you can wear it multiple days.

Moisture-wicking performance does degrade over time after repeated use and laundering. Using a fabric shaver can rejuvenate the moisture-wicking ability in your Duofold baselayers. These devices gently shave the fabric’s surface to restore breathability and sweat-wicking function.

Caring for your wicking base layers properly maximizes their lifespan. Wash in cool water and tumble dry low. Fabric softener can inhibit wicking, so skip it. Removing Duofold baselayers promptly after activity and letting them air dry also helps maintain moisture-wicking performance.

Don’t endure that soggy, sweat-drenched feeling any longer. The moisture-wicking fabrics in Duofold’s baselayer thermals keep you dry and comfortable wherever your active lifestyle takes you. Their advanced textiles quickly wick sweat away from your skin for all-day dryness. Stay cool, fresh, and high performing with Duofold’s sweat-wicking innovation.

Odor Control Technology: No Stinky Thermals Here

Wearing long underwear all day can sometimes lead to a not-so-fresh feeling. But thanks to innovative odor control technologies, Duofold’s baselayer thermals stay stink-free and let you keep your cool even during sweaty activities. By integrating antimicrobial properties right into the fabric, Duofold fights bacterial growth that causes body odor in their thermal underwear.

Odor issues in clothing occur when bacteria on your skin start to rapidly multiply as you sweat. The bacteria metabolize the fatty acids in your sweat, producing compounds that give off an unpleasant aroma. Body odor then gets trapped in the fabric’s fibers.

Duofold solves this issue through the use of odor-inhibiting textiles. Fabrics like merino wool naturally resist bacterial growth. Duofold enhances this effect by blending in synthetic fibers such as polyester that also deter bacteria. The specific weave patterns maximize air circulation, making the fabric unfavorable for bacteria.

Duofold baselayers also utilize antimicrobial treatments that bond to the fabric and prevent the growth of bacteria. Silver ions, triclosan, and other biocides are employed to keep odors at bay. Duofold’s Infinity odor control technology uses an advanced antimicrobial made from renewable plant sources rather than harsh chemicals.

By integrating odor-fighting properties directly into the molecular structure of the textiles, Duofold thermals stay fresher for longer. Antimicrobial fibers reduce bacterial growth both on the surface of the fabric and embedded deep within the material. Even after repeated wearings, Duofold baselayers inhibit stink.

Duofold offers specially engineered odor control baselayers for activities where sweating is intense. The Sahara Pro Crew Top uses Infinity biotechnology in its merino fabric to prevent odor during desert adventures. The Expedition Weight Union Suit relies on antimicrobial silver ions for staying scent-free even in frigid conditions.

For high-output aerobic activities like cycling, running, and cross-training, Duofold’s Ultralite line controls odor thanks to its blend of merino wool, nylon, and spandex. The soft, breathable fabric wicks sweat away from the skin while inhibiting bacteria growth so you stay dry and odor-free during rapid perspiration.

Duofold’s Chamois baselayers utilize an antimicrobial polyester blend designed for odor control when skiing or snowboarding. The soft, stretchy fabric allows you to layer comfortably over it inside your snow pants. Flatlock seams eliminate chafing while snowshoeing or skinning uphill.

Traveling can test the odor resistance of your clothing as you deal with long flights, hot weather, and days without laundry access. Duofold’s Sahara Long Sleeve Crew uses moisture-wicking merino wool to combat bacteria growth during journeys to humid climates. Its ultralight fabric makes it perfect for backpacking through the tropics.

For workwear in grimy, sweat-inducing environments like construction and field work, Duofold’s Base Layer Midweight Workwear Top employs an antimicrobial treatment. The polyester blend inhibits odor thanks to its Infinity technology even when wearing it multiple shifts in a row.

Proper laundering helps maximize the effectiveness of Duofold’s odor-fighting fabrics. Turning baselayers inside out, washing in cold water with a mild detergent, and air drying all help preserve the antimicrobial properties. Using a delicate cycle and fabric softener sheets should be avoided.

Thanks to their scientific fabric technologies, Duofold’s baselayer thermals keep you comfortable and confident without embarrassing odors. Antimicrobial treatments reduce bacterial growth while moisture-wicking performance dispels the sweat that bacteria feed on. Duofold’s thermal underwear smells as good as it feels.

Soft Against Your Skin for All-Day Comfort

Thermal underwear worn right against your skin needs to feel nice and soft for all-day comfort. Duofold’s baselayers use ultra-soft fabrics so you can focus on the activity at hand rather than itchy, uncomfortable long johns. From merino wool to silk to lightweight synthetics, Duofold has perfected the art of softness in their thermal underwear.

Softness matters because the lightweight nature of baselayer thermals means they are worn directly on your skin without any other fabric layers. To avoid irritation and enjoy your chosen activity, you need a super-soft handfeel.

Duofold engineers their thermal fabrics for softness right down to the individual fiber level. They blend natural fibers like merino wool with flexible synthetics like nylon and polyester microfibers. The results are textiles as soft as they are warm.

Duofold’s innovative Thermalrite fabric technology balances softness with warmth by trapping body heat inside tiny air pockets within the material. This provides insulation without stiffness or scratchiness against your skin. Pretty clever!

Certain parts of the body are more sensitive to scratchy fabrics. To combat this, Duofold employs flatlock stitching on the seams in underwear areas to eliminate thick seams. The silky-smooth Thermalrite fabric around the waist and thighs prevents chafing or irritation.

For all-day wear in cold conditions, Duofold’s heavyweight expedition thermals utilize 350g/m2 fabric that retains heat without feeling bulky. The multi-panel construction allows freedom of movement while the brushed interior delivers incredible softness. The Expedition Weight bottoms feature a supple waistband that won’t dig in under your hips.

Duofold’s Chamois baselayer line designed for snow sports uses a soft midweight polyester blend. The four-way stretch offers unrestricted mobility while the supple fabric prevents chafe when layering underneath your ski gear. Flatlock seams enhance the smooth feel.

The Sahara Long Sleeve Crew made of featherweight merino wool feels soothing against sunburned skin after long days in the desert heat. Its 17.5 micron merino fibers have a consistent diameter that maximizes softness and comfort when adventuring through dynamic climates.

Duofold’s sleepwear thermals also prioritize incredible softness for relaxing. The Worumbo Top and Pant use soft-brushed organic cotton for incredible luxury lounging around the cabin after an active day outside. The lightly napped fabric feels so cozy at night.

To control odor, Duofold integrates technologies like antimicrobial silver ions into some fabrics. Since metals can feel rough on skin, Duofold utilizes micro-encapsulation to surround the silver with a protective polymer. This prevents any skin irritation from the metal particles.

Some folks with sensitive skin can react to certain synthetic materials like nylon and polyester. To prevent irritation, Duofold employs high-quality grades of these materials to enhance softness. Blending synthetics with natural fibers also improves fabric feel.

As a final touch, Duofold thermals receive extra softening washes during production using specialty detergents. This enhances the handfeel right out of the package before you ever put them on. The fabrics only get softer over time with proper laundering.

Caring for your Duofold baselayers correctly preserves softness. Wash in cold water, tumble dry low, and avoid fabric softeners and dryer sheets which can impair moisture control. Hang dry instead of over-drying in machines.

Rejuvenate bobbling or pilling fabrics with a fabric shaver to remove burred fibers and restore a silkiness. Take care not to over-shave the material.

Slipping into Duofold’s plush thermals feels like a warm hug thanks to their sensuously soft fabrics. You can fully focus on the slopes, trails, or adventures ahead knowing your Duofold baselayers will feel fabulous all day long.

Flexible Fit Moves With You During Activity

To enjoy your favorite cold-weather activities, your baselayer thermals need to flex and move with your body. Duofold engineers their thermal underwear for maximum stretch and mobility so you can perform without restriction. From skiing the steeps to sending the climb, Duofold’s flexible base layers work in sync with your movements.

Duofold uses premium fabrics with natural stretch like merino wool and spandex blends. The interwoven fibers add elasticity so the material moves with you rather than inhibiting motion. This improves performance and reduces irritation.

Innovative textile treatments like Duofold’s Thermalrite technology further enhance flexibility by creating air pockets that add warmth without bulk. The result is stretchy, lightweight material providing a flexible fit.

Duofold employs clever construction techniques to optimize flexibility as well. Pre-shaped knee darts, gusseted crotches, and raglan sleeves work with your body’s contours for full freedom of motion. Underarm gussets allow arms to swing freely during cross-country skiing or climbing.

Strategically placed mesh panels add breathability and mobility. Duofold’s Varitherm top uses airy underarm insets to prevent overheating when carving turns down the mountain even as its flexible fabric moves with each dynamic skiing posture.

For mountain sports like skiing, snowboarding, and hiking, Duofold’s Chamois line stretches smoothly under outer layers. The midweight fabric allows stepping high up onto rock ledges when scrambling off-trail thanks to 4-way mechanical stretch.

During intense gym sessions or cross-training, Duofold’s Ultralite baselayers are ideal for flexing and bending. The lightweight merino/spandex blend offers 25+ UPF sun protection for outdoor workouts while the stretchy performance fabric mirrors your body’s every move.

Travelers exploring ancient sites appreciate the flexible mobility of Duofold’s Sahara Tee. The featherweight merino tee layered under a button-down lets you climb ruins and trek through jungles while keeping you cool in sweltering climates.

For runners and cyclists, Duofold’s Velocity line balances warming insulation with flexible stretch so sprinting for the finish line feels effortless. Flatlock seams facilitate smooth movement mile after mile.

Duofold’s Expedition Weight thermals deliver incredible warmth for frigid activities like ice fishing and snowmobiling thanks to their heavyweight insulation. Yet the pre-shaped sleeves allow wielding poles or tools without impediment.

To accommodate different body types, Duofold thermals are cut in a relaxed fit for easy layering. There’s room to move under the fabric without it feeling baggy or sloppy. Thumb loops prevent sleeves from riding up when reaching overhead.

Duofold also offers their thermals in regular and tall sizes. The extra length in tall sizes ensures snow pants or bibs don’t leave ankles exposed. Longer sleeves in tall tops provide wrist coverage for activities like skiing.

Caring for your flexible Duofold base layers properly maximizes lifespan. Wash in cold water on a gentle cycle. Hang dry instead of over-drying in machines – this preserves the stretchy fabrics.

Use a fabric shaver to gently remove pilling or burred fibers. Don’t over-shave the material which can degrade elasticity. Periodically apply a waterproofing spray like ReviveX to restore durable water repellency and maintain flexibility.

Give yourself full range of motion in Duofold’s stretchy, mobile baselayer thermals. Their flexible construction moves with you for active cold-weather pursuits. Duofold’s got you covered from first tracks to last run.

Flatlock Seams Prevent Chafing and Irritation

Nothing ruins a day outdoors faster than chafing and irritation from ill-fitting base layers. That’s why Duofold uses flatlock seam construction in their thermal underwear to eliminate rubbing, pinching, or scratching. Flatlock stitching results in smooth, low-profile seams that move with your body to prevent skin irritation.

Traditional seams join fabric together by stitching the edges with overlapping thread. This creates a raised ridge on the interior of the garment. These seams can cause chafing as the thick edge rubs against your skin, especially during dynamic activities.

Flatlock seams place the stitching threads parallel to the fabric instead of overlapping. The seam allowances lie flat instead of being folded under. This minimizes interior elevation for smooth, chafe-free wear.

Duofold strategically uses flatlock seams in high-chafe areas like the waistband, armpits, inner thighs, and sleeves. This prevents abrasion in spots prone to irritation. Flat seams also improve comfort around the neck and wrists.

For thermals worn during aerobic activities like cross-country skiing or hiking, flatlock seams are crucial. As you move and perspire, any seam irritation will only get worse over time and distance. Duofold’s Sahara tee seamlessly moves with your shoulders when trekking across sand dunes thanks to the flatlock construction.

In snow sports, a flat interior is vital when layering bulky snow pants and jackets over base layers. Duofold’s Varitherm top uses ultra-smooth flatlock stitching under the arms so backpack and ski boot straps won’t chafe all day long out on the slopes.

Skin-tight performance fabrics are especially prone to seam abrasion during intense workouts. Flat seams on Duofold’s Ultralite let you power through circuits or hot yoga without distraction.

For all-day wear in freezing weather, flat seams help prevent painful chafing from repetitive motion. Duofold’s Expedition Weight Union Suit relies on flatlock seams down the inner legs so you stay chafe-free whether snowshoeing or ice fishing.

Underwear zones see some of the most constant movement and friction. Duofold constructs the leg hems on long johns and the waistband of union suits with flat seams to eliminate chafing during activities requiring big strides like cross-country skiing.

Seam irritation and friction also reduces thermal efficiency by compressing and disrupting insulating fabric layers. Flat seams improve heat retention in Duofold’s baselayers by minimizing this effect.

Flatlock seams have cross-stitches visible on the outside. However, Duofold conceals these on the exterior using camouflage stitching that hides the seams. This enhances aesthetics while allowing fun patterns and prints.

To further reduce bulk, Duofold trims away excess seam allowances after flatlock construction. This results in seams with minimal interior elevation for pure comfort.

Proper laundering maintains flatlock integrity. Wash and dry on gentle cycles, removing base layers promptly after activity. Avoid harsh detergents or fabric softeners that can degrade seam construction over time.

Glide through your active day in Duofold’s chafe-free flatlock seams. Their innovative flat seams move fluidly with your body eliminating irritation so you can stay focused on the day’s adventures.

Zippered Mock Neck for Easy On and Off

Trying to pull a tight base layer over your head without messing up your hairdo is no fun. That’s why Duofold uses handy zippered mock necks on some thermals for easy on and off. The zippered mock turtleneck design makes getting in and out of Duofold’s baselayer tops a breeze.

Mock neck base layer tops offer more coverage and warmth than a crew neckline. However, the snug high neck can be a hassle to pull on overhead. This is especially true with long hair or glasses.

Duofold’s solution is to install a zipper that runs partway down the front of the mock turtleneck. Now you simply unzip the neck to widen the opening, allowing easy entry without ruining your hair or knocking off your goggles.

The long zipper starts below the mock neck and extends midway down the chest. This provides ample room to get the top on and off without excessive unzipping. The zipper length also allows flexibility for venting and temperature regulation.

Duofold hides the zipper discreetly so it doesn’t detract from the baselayer’s aesthetics. But the zipper pull tab is easy to grasp with gloves on for quick unzipping before heading into the lodge after skiing.

On some mock necks, Duofold uses a reverse coil zipper made of synthetic material instead of metal. This type of zipper resists freezing and won’t corrode from salt and sweat like metal teeth can.

The Chama Zip Turtleneck pairs a reverse coil polyurethane zipper with Duofold’s midweight Thermalrite polyester fabric. It’s perfect for snowboarders and skiers who don multiple neck gaiters and face masks throughout the day.

Duofold’s mock neck hooded top takes the zipper even further. The full-length front zipper allows complete venting apart from neck to hip. Just unzip and peel the top open when you need a blast of cooling airflow.

For hunters and ice anglers sitting for hours in blinds and shanties, a zipper mock neck facilitates temperature regulation. Partially unzip to vent then zip back up before heading out into the cold.

The zipper is discreet enough for everyday wear too. Keep the front zipped and you’ll stay toasty wearing Duofold’s Thermocline Zip Mock around town when winter winds howl.

Travelers will appreciate being able to quickly unzip a thermal layer when going through hot and humid airport security lines. Just unzip and roll down the Duofold mock turtleneck neck instead of fully removing it.

Duofold’s ladies zip mock neck base layers allow moms to vent quickly after shoveling snow or sledding with the kids. Unzip, cool down, then zip up again to lock in warmth.

For active pursuits like ice climbing and Nordic skiing, the zippered neck seamlessly integrates with harnesses and backpacks without chafing or irritation.

Caring for the zipper properly maintains its smooth operation. Periodically apply zipper wax lubricant to prevent stuck teeth. Use mild soap and soft brush to clean.

Get in and out of Duofold’s mock neck thermals with zero hassle thanks to their easy-access zippers. The zippered opening provides quick venting or temperature regulation for active cold-weather endeavors.

Underarm Gussets Allow Full Range of Motion

Reaching, swinging, and striding requires unimpeded arm mobility. That’s why Duofold uses underarm gussets in their baselayer tops – these diamond-shaped inserts provide full freedom of movement for any activity. Strategically placed underarm gussets allow your arms complete range of motion without tightness or restriction.

Picture the typical t-shirt armpit shape – two angled seams come together to attach the front, back, and sleeve in a snug seam intersection. Now imagine layering a jacket or backpack strap over that spot.

As your arm moves, that tight seam junction pulls, binds, and restricts mobility. Repeated motion leads to chafing and discomfort. Not ideal for activities requiring flexibility.

An underarm gusset creates space where you need it most. The diamond-shaped gusset acts like a wedge, separating the main garment seams to open up the underside of the arm.

Unencumbered by pinching seams, your arms move freely through their full range when swinging an ice axe overhead or casting a fishing rod out over the frozen lake.

For winter sports like skiing, snowboarding, and mountaineering, unrestricted arm mobility is crucial. Duofold thermal tops use underarm gussets so you can carve fierce turns and climb precipitous chutes without sleeve restriction.

Underarm gussets minimize chafing when backpack shoulder straps rub the armpits all day on the trail. The open underarm design reduces friction and allows better pack strap rotation.

Duofold’s Chamois Ski Base Layer Top features underarm gussets tailored for snowsports. The midweight thermal fabric layers smoothly under outerwear while the gusset construction allows whipping those ski poles around.

Runners and hikers vent heat better thanks to underarm gussets. By separating the main armpit seam junction, more cooling airflow circulates as your arms pump up and down.

For tactical and patrol uniforms worn under body armor, unimpeded arm mobility is vital. Duofold’s duty wear base layers utilize underarm gussets for easing shoulder transitions when drawing firearms from holsters.

The low-profile flatlock stitching used on gussets prevents interior seams from causing any skin irritation during repetitive motions. It moves fluidly with your skin.

Underarm gussets add comfort without creating excess bulk in the armpit region. The diamond shape blends seamlessly into the garment construction.

Duofold may adjust gusset proportions based on garment size. Larger sizes get expanded gussets to accommodate greater arm movement required by larger body frames.

Move freely without constraints in Duofold baselayers. Underarm gussets provide full unrestricted mobility so you can focus on the activity, not your gear.

Why Choose Duofold Over Other Thermal Brands?

With so many thermal underwear brands out there, why should you choose Duofold? When it comes to unbeatable warmth, innovative technology, and premium quality, Duofold baselayers consistently rise above other brands. Here’s why you’re better off with Duofold.

First off, Duofold has been perfecting thermal fabrics since 1954. That’s over 65+ years dedicated to warmth and comfort! Their decades of expertise result in baselayers simply better engineered than most competitors.

Duofold owns numerous patents for proprietary textile technologies like Thermalrite and Infinity. These exclusive innovations provide moisture management, odor control, and warmth unavailable in other brands. Duofold’s special-blend fabrics maximize softness and mobility as well.

The combination of natural and synthetic fibers used in Duofold’s fabrics creates an optimal balance of insulation, breathability, and quick-drying performance. You just don’t find that perfect blend in other thermals.

Duofold offers weights and warmth ratings that span a wide spectrum. From ultralight to expedition-weight and everything in between, they have thermals tailored specifically for each activity’s needs. Most other brands only offer limited options.

The construction quality of Duofold garments is top notch. Stitches are evenly spaced and seams lie flat and won’t unravel. Less expensive thermals often skimp on quality stitching and workmanship.

With innovative features like zippered mock necks, thumb loops, and underarm gussets, Duofold thermals perform better during activities. Generic thermals lack these purpose-driven designs.

Duofold uses premium textiles like merino wool and silk instead of cheaper polyester and generic synthetics. Higher-end materials improve comfort and temperature regulation. Expect cheaper fabric from other brands.

As a trusted American heritage brand, Duofold has unconditional lifetime warranties on most thermals. If it doesn’t perform as promised, they’ll replace it. You won’t find that guarantee with most thermal brands.

Duofold thermals undergo rigorous testing in real-world environments to perfect the designs. Random thermal brands likely haven’t withstood such field trials when developing their products.

With innovative lineups designed specifically for winter sports, outdoor work, duty wear, and high-performance athletics, Duofold has baselayers tailored for every activity imaginable.

Duofold’s thermal fabrics utilize sustainable resources and ethical manufacturing. Many competitors churn out cheap thermals with little environmental regard.

Even after decades leading the industry, Duofold continues innovating game-changing baselayer technology like Kinetic ThermoPlume insulation. Stagnant brands can’t compete.

Duofold offers an exhaustive range of fits, styles, and designs rather than just the basic long johns. There are tailored women’s lines with fashionable patterns and colors.

With knowledge and dependability spanning over half a century, Duofold is the number one American thermal underwear brand trusted worldwide. Why settle for any less?

Duofold Baselayers for Hunting, Fishing, and Working Outdoors

Spending long days outside in the elements requires durable, insulating base layers. That’s why Duofold’s thermals are a staple for hunters, anglers, and outdoor workers who need ultimate warmth and rugged performance. Duofold’s innovative baselayer technology keeps you warm, dry, and odor-free when hunting, fishing, or working outdoors.

Duofold’s heavyweight and expedition thermals provide unbeatable insulation for frigid mornings in the duck blind or sitting motionless in the tree stand. Retaining body heat is crucial when remaining inactive for long periods in freezing temperatures.

The Expedition Weight Union Suit with 450g/m2 fabric thickness is ideal for late season bow hunts or ice fishing. The one-piece design eliminates any gaps in coverage for maximum warmth during below-freezing temperatures.

Duofold’s unique Thermalrite and Varitherm fabrics trap body heat in the air pockets of the material while wicking moisture away from skin. This keeps you warm and dry on the boat deck or working outdoors all day long.

For aerobic activities like paddling and hiking to your blind, Duofold’s midweight Chamois thermals regulate your temperature during physical exertion. The moisture-wicking fabric prevents overheating while trudging through the woods to your treestand.

Duofold’s antimicrobial technology prevents sweat and dirt from causing odors even after multiple all-day hunts or fishing trips. The treated fabrics inhibit bacterial growth that leads to unpleasant scent.

The camouflage and nature prints available blend into the surroundings whether crouching in a duck boat or stalking through the brush. Concealment is improved without having to layer bulky outerwear.

Relaxed fits allow easy layering over Duofold baselayers. The Expedition Weight Crew glides comfortably under a heavy sweater and insulated bibs when working outdoors in the winter.

Zippered mock necks like the Chama allow temperature regulation. Partially unzip to cool down after hauling your deer back to camp before zipping up to retain warmth.

Thumb loops create a seal between sleeves and gloves to lock in warmth when handling gear or nets in the icy conditions.

For all-day comfort, Duofold uses super-soft fabrics against the skin and flatlock seams that prevent chafing and skin irritation during repetitive motions.

The durable, rugged construction of Duofold baselayers holds up to rugged terrain during multiple seasons of hunting and fishing. They’re built to last season after season.

Duofold’s women’s thermafleece base layers provide odor-free warmth and unrestricted movement for female hunters and anglers. The soft brushed fabric delivers warmth when waiting patiently for the big catch.

Stay focused on the hunt or the fishing and not on being cold. Duofold baselayers keep you insulated, shielded from the elements, and concealed from wildlife when outdoors.

Layering Duofold Thermals for Maximum Warmth

Bitter cold conditions call for intelligent layering using Duofold thermals. Choosing the right combination of Duofold baselayer pieces and properly coordinating them with other garments maximizes warmth, moisture management, and comfort in frigid temperatures. Follow these tips for layering Duofold thermals when the mercury plummets.

As the innermost layer next to skin, Duofold baselayers provide a dry, warm foundation. Midweight and heavyweight Duofold thermals insulate the core using fabrics like wool, silk, and polyester blends.

For aerobic winter sports, use Duofold’s lightweight and midweight baselayers to manage moisture. Their sweat-wicking and quick-drying performance keeps you dry while blocking wind and retaining heat.

Add an insulating layer over the Duofold baselayer using mid-fill garments like fleece pullovers or insulated jackets. The loft of these pieces traps additional warmth without overheating.

Top off your layering system with a protective outer shell. Waterproof-breathable jackets or ski pants shield from snow and wind while venting excess moisture.

Use a heavier Duofold thermal weight on your core than your extremities. Combine an Expedition Weight top with Midweight pants or long johns for keeping your core extra warm.

Wear a Duofold neck gaiter as an additional layer over your mock turtleneck baselayer. The doubled-up insulation protects your neck without impeding motion.

Add Duofold liner gloves as an extra layer under heavy insulated mittens or gloves. Liners provide an extra layer of warmth and quickly wick moisture.

For aerobic activities, utilize Duofold’s zip mock necks to regulate temperature. Partially unzip and peel open your top to vent excess heat when building up a sweat.

In bitter cold, layer Duofold’s dual top and bottom sets for maximum coverage. The overlapping waistbands seal out drafts when bending and reaching.

Use Duofold’s Thermafleece as a plush insulating layer over merino wool or polyester baselayers. The soft, brushed fleece interior traps heat while blocking wind.

When sitting inactive in cold conditions, add an extra layer over Duofold baselayers on your extremities where blood circulation is reduced. Keep your hands and feet extra toasty.

Select Duofold baselayer pieces with matching wicking properties and textures. This allows effective moisture transfer between layers next to skin.

In extremely cold temperatures, wear Duofold expedition-weight union suits as an insulating base with flexible mid-layers over them. The full-coverage one-piece design retains maximum warmth.

The looser fit of Duofold’s relaxed-fit baselayers makes layering over them more comfortable. Skin-tight thermals can impede circulation and restrict motion under other layers.

With the right combination of Duofold thermals and intelligent coordination of outer layers, you can stay warm and dry even when the temperatures plummet below zero. Don’t let winter win – conquer the cold with Duofold!

Caring for Your Duofold Thermal Underwear

Duofold thermals are crafted from premium materials to provide years of unmatched warmth. Properly caring for your Duofold baselayers helps preserve their insulating performance and technical fabric properties for seasons to come. Follow these care tips to get the most out of your Duofold thermal underwear.

Always check the specific care instructions for your Duofold thermals, as methods can vary by fabric. In general, machine washing in cold water and tumble drying on low heat works for most styles.

Turning garments inside-out before washing protects the outer fabric from wear, retains insulation, and prevents pilling. This is especially important for soft merino wool thermals.

Use a mild detergent without dyes, bleaches or other harsh chemicals that can degrade fabric performance. Lingerie wash works well. Avoid fabric softeners and dryer sheets as they reduce wicking properties.

Never use hot water when washing Duofold baselayers! The heat damages elasticity in waistbands and cuffs causing them to lose shape. Use cold water washes only.

When drying, remove Duofold thermals promptly before over-drying. Excessive dryer heat degrades the fibers’ ability to insulate and wick moisture. Tumble dry low.

For maximum lifespan, air drying Duofold baselayers is recommended. Lay flat or line dry to avoid stretching the elastic ribbed cuffs and hems out of shape while retaining insulation.

Use a fabric shaver to gently remove burred pills or fuzz that develop on the inside and outside of the fabric. This restores thermal performance and smooths the soft handfeel.

Spot clean Duofold thermals as needed using a damp washcloth with mild detergent. Pre-treat stubborn stains before washing. Never bleach fabrics.

To refresh aroma without frequent washing, air out Duofold thermals or use an odor-neutralizing spray. Fabrics like merino wool are naturally odor resistant.

Repair any loose seams promptly to prevent unraveling stitches or tears. Hand sew repairs using a tight whipstitch along the existing seam.

Protect zippers by lubricating with wax to prevent sticking. Use a toothbrush and mild soap to gently clean out dirt and debris from zipper teeth.

Store Duofold thermals folded flat in breathable drawers. Avoid cramming them tightly in dresser drawers which strains elasticity.

Between seasons, store Duofold baselayers in an acid-free plastic bin to protect from moths, bugs, dust, and humidity. Avoid using cedar chests.

Before winter, inspect your Duofold thermals for needed repairs and refresh water repellency using a wash-in treatment like ReviveX. This restores full performance.

With proper care, your Duofold thermals will provide lasting warmth and comfort for many seasons ahead. Follow these tips and enjoy your Duofold baselayers for years to come.

Shop Duofold Baselayers for Cozy Warmth All Winter

When chill winds blow, it’s time to shop for Duofold baselayers! As the leader in thermal underwear for over 65 years, Duofold offers an unmatched selection of premium thermals. Browse the extensive lineup and equip yourself with Duofold’s patented warmth for winter adventures ahead.

Evaluate your needs. Do you require ultimate insulation against bitter cold or breathable performance for aerobic activities? Select Duofold thermal weights accordingly, from featherweight to expedition-weight.

Choose moisture-wicking Duofold baselayers if sweating will occur. Thermal knits with Thermalrite and Varitherm technology keep you dry and prevent chilling.

Look at insulation type too. Merino wool provides natural odor resistance and comfort. Synthetics like polyester and nylon offer stretchy performance. Silk blends add incredible softness.

Shop Duofold’s specific collections tailored for cold-weather pursuits. The Chamois line serves skiers and snowboarders. Sahara thermals meet travelers’ needs in hot climates.

Browse an expansive array of tops and bottoms to mix and match. Pair a mock neck top with leggings or long johns. Combine a zip-front thermal hoodie with a crew neck.

For whole-body coverage, check out Duofold’s one-piece union suits in multiple weights. The full-body insulation helps retain heat.

Try Duofold’s dual top and bottom sets for customizable layering. The overlapping waistbands prevent drafts and heat loss in frigid temps.

Look for unique Duofold features like underarm gussets for unrestricted mobility and thumb loops that seal out cold.

Feel the softness firsthand when evaluating Duofold’s thermal fabrics. Touch the buttery smooth Thermalrite knits and plush Thermafleece interiors.

Inspect the stitching and construction. Duofold uses premium quality materials and workmanship for outstanding durability.

Consider care requirements before purchasing. Duofold offers high-performance merino wool yet also easy-care synthetics. Choose what matches your laundry practices.

Shop Duofold’s women’s thermal offerings like the Varitherm Slim Cut Top and Thermafleeced Robe for stylish feminine designs.

Look for special technologies like Duofold’s two-stage moisture control that simultaneously wicks and spreads sweat outward to accelerate evaporation.

Treat yourself to Duofold’s luxurious Worumbo tops and bottoms for relaxation. The organic cotton and TENCEL fabric feels incredible next to skin.

Give yourself the gift of legendary Duofold warmth this winter. Shop their unmatched selection of innovative, high-performance baselayers for cozy comfort all season long.