What makes the Brooks Adrenaline GTS 21 a top choice for runners in 2023. How does the DNA LOFT cushioning enhance comfort and performance. Why is the GuideRails support system crucial for stability. What improvements does the 3D Fit Print upper offer. How does the Segmented Crash Pad contribute to a smoother ride.

The Evolution of Brooks Adrenaline GTS 21: A Stability Running Shoe Powerhouse

The Brooks Adrenaline GTS 21 represents the pinnacle of stability running shoe technology in 2023. This latest iteration builds upon the longstanding reputation of the Adrenaline series, which has been a trusted companion for runners seeking moderate support and cushioning for decades. The GTS 21 incorporates cutting-edge features and improvements that cater to the evolving needs of both seasoned athletes and casual joggers alike.

With its innovative design and advanced technologies, the Adrenaline GTS 21 aims to provide an optimal balance of comfort, support, and performance. This comprehensive review will delve into the key features that set this shoe apart from its predecessors and competitors in the stability running shoe market.

DNA LOFT Cushioning: The Heart of Comfort and Responsiveness

At the core of the Brooks Adrenaline GTS 21’s performance lies the DNA LOFT cushioning system. This proprietary foam technology represents a significant upgrade from the BioMoGo DNA midsole found in previous models. But what makes DNA LOFT so special?

• Soft and responsive ride
• Air pods that compress on impact for superior shock absorption
• Plush yet energetic feel
• Adaptive cushioning that conforms to your unique gait cycle
• Exceptional durability for long-lasting performance

The DNA LOFT cushioning system is engineered to provide a harmonious blend of softness and responsiveness. As your foot strikes the ground, the air pods within the foam compress, effectively absorbing the impact and reducing stress on your joints. This innovative design ensures that runners experience a smooth, stable ride throughout their entire run.

One of the standout features of DNA LOFT is its ability to adapt to each runner’s unique gait cycle. This personalized cushioning experience means that whether you’re a heel striker or forefoot runner, the Adrenaline GTS 21 will provide optimal support and comfort tailored to your running style.

Durability That Goes the Distance

Durability is a crucial factor for any running shoe, and the DNA LOFT cushioning in the Adrenaline GTS 21 excels in this area. The foam maintains its cushioning properties even after hundreds of miles, ensuring that runners can rely on consistent performance throughout the lifespan of the shoe. This longevity not only provides excellent value for money but also allows runners to develop a lasting relationship with their footwear.

GuideRails Support System: Stability Redefined

The GuideRails support system is a cornerstone of the Brooks Adrenaline GTS 21’s stability features. This innovative technology represents a departure from traditional stability shoe designs, offering a more holistic approach to support. But how exactly does the GuideRails system work?

• Railed post on the medial side extending up the midsole
• Limits excess movement and promotes foot stability
• Provides subtle guidance without being overly controlling
• Effectively controls pronation for those who need it
• Offers just the right amount of support for moderate stability needs

Unlike conventional stability shoes that focus solely on controlling pronation at the foot level, the GuideRails system takes a more comprehensive approach. By extending up the midsole, it helps to align not just the foot, but also the ankle and lower legs. This holistic support mechanism works to keep your entire lower body in its natural motion path, reducing the risk of injuries associated with overpronation.

The beauty of the GuideRails system lies in its subtlety. It provides guidance and support when needed, without feeling intrusive or overly controlling. This makes the Adrenaline GTS 21 an excellent choice for runners who require moderate stability but don’t want to feel restricted by their footwear.

Customized Support for Various Running Styles

One of the key advantages of the GuideRails system is its ability to adapt to different running styles and pronation levels. Whether you’re a mild overpronator or require more substantial support, the GuideRails technology works in harmony with your natural gait to provide just the right amount of stability. This versatility makes the Adrenaline GTS 21 suitable for a wide range of runners, from those new to stability shoes to experienced athletes looking for reliable support.

3D Fit Print Upper: Engineering the Perfect Fit

The upper of a running shoe plays a crucial role in overall comfort and performance. With the Adrenaline GTS 21, Brooks has introduced a revolutionary 3D Fit Print mesh upper. This advanced design represents a significant improvement over previous models, but what makes it stand out?

• Engineered using data from thousands of foot scans
• Provides a comfortable, customized fit
• Eliminates tight spots and irritation
• Streamlined design with minimal overlays
• Offers exceptional flexibility and breathability
• Features adjustable eyestay lacing for midfoot customization

The 3D Fit Print technology is a testament to Brooks’ commitment to data-driven design. By analyzing thousands of foot scans, the company has created an upper that adapts to a wide range of foot shapes and sizes. This results in a shoe that feels as if it were custom-made for each runner, providing a snug yet comfortable fit right out of the box.

One of the most notable improvements in the Adrenaline GTS 21’s upper is the elimination of unnecessary overlays. This streamlined design not only reduces weight but also enhances flexibility and breathability. Runners will appreciate the unrestricted feel and improved ventilation, especially during longer runs or in warmer conditions.

Customizable Midfoot Support

The adjustable eyestay lacing system is another key feature of the 3D Fit Print upper. This design allows runners to fine-tune the fit around the midfoot area, ensuring optimal lock-down and preventing in-shoe slippage. The ability to customize the fit in this crucial area contributes to improved overall stability and comfort, complementing the GuideRails support system.

Segmented Crash Pad: Smooth Transitions and Soft Landings

The outsole of the Brooks Adrenaline GTS 21 features the innovative Segmented Crash Pad design. This technology plays a vital role in the shoe’s overall performance and ride quality. But what exactly does the Segmented Crash Pad bring to the table?

• Segmented heel design for smooth transitions
• Provides soft, cushioned landings
• Flex grooves promote natural foot flexion
• Strategic rubber reinforcement in high-wear areas
• Exposed midsole foam contributes to a lighter feel

The Segmented Crash Pad is designed to work in harmony with your natural foot motion. As your heel strikes the ground, the segmented design allows for a more gradual and controlled deceleration. This results in smoother transitions from heel to toe, reducing the jarring impact often associated with heel striking.

Flex grooves throughout the outsole further enhance the natural movement of your foot. These strategically placed grooves allow the shoe to bend and flex with your foot, promoting a more natural and efficient running gait. This design feature is particularly beneficial for runners who prioritize ground feel and responsiveness in their footwear.

Durability Meets Lightweight Performance

Brooks has struck an impressive balance between durability and weight reduction in the Adrenaline GTS 21’s outsole. High-wear areas are reinforced with additional rubber, ensuring long-lasting performance even after hundreds of miles. At the same time, exposed midsole foam in less critical areas helps to keep the overall weight of the shoe down, contributing to a lighter, more nimble feel on the run.

Performance Review: How the Adrenaline GTS 21 Delivers on the Road

The true test of any running shoe comes when the rubber meets the road. So how does the Brooks Adrenaline GTS 21 perform in real-world conditions? Let’s break down the key performance aspects based on extensive testing and user feedback:

Cushioning and Comfort

The DNA LOFT cushioning system truly shines in the Adrenaline GTS 21. Runners consistently report a plush, comfortable ride that doesn’t sacrifice responsiveness. The foam provides excellent shock absorption on longer runs, reducing fatigue and discomfort. Despite the ample cushioning, the shoe maintains a good ground feel, striking an impressive balance between protection and sensory feedback.

Stability and Support

The GuideRails support system proves its worth, offering just the right amount of stability for mild to moderate overpronators. Testers note that the support feels natural and unobtrusive, guiding the foot without feeling restrictive. The smooth transitions through the gait cycle are particularly praised, setting the Adrenaline GTS 21 apart from stiffer stability shoes on the market.

Responsiveness and Energy Return

While not marketed as a speed shoe, the Adrenaline GTS 21 surprises with its responsiveness at faster paces. The DNA LOFT foam provides a noticeable bounce during toe-off, contributing to a lively feel that’s often lacking in traditional stability trainers. This responsiveness, combined with the smooth heel-to-toe transition, makes the shoe versatile enough for both long, slow runs and up-tempo workouts.

Fit and Comfort

The 3D Fit Print upper receives high marks for its comfort and secure fit. Many runners appreciate the snug yet accommodating feel, noting that the shoe adapts well to different foot shapes. The streamlined design effectively reduces pressure points and hot spots, making the Adrenaline GTS 21 suitable for all-day wear beyond just running.

Durability and Longevity

Early reports on durability are overwhelmingly positive. The outsole rubber shows minimal wear even after extensive mileage, and the midsole foam retains its cushioning properties well. This durability not only provides excellent value for money but also allows runners to maintain consistent performance throughout the lifespan of the shoe.

Sizing and Fit: Finding Your Perfect Adrenaline GTS 21

Ensuring the right fit is crucial for maximizing the benefits of any running shoe. When it comes to the Brooks Adrenaline GTS 21, what should runners keep in mind regarding sizing and fit?

• Generally true to size for most runners
• Available in standard D/B widths for men and women
• Potential for a snugger fit in the mesh upper compared to previous versions
• Consider sizing up a half size for more toe box room if needed
• In-store try-on recommended when possible
• Accommodates various foot shapes while providing secure midfoot hold

The Brooks Adrenaline GTS 21 tends to fit true to size for the majority of runners. However, it’s worth noting that some users have reported a slightly snugger fit in the mesh upper compared to previous iterations of the shoe. This snugness is generally perceived as a positive feature, contributing to the shoe’s supportive nature. However, if you prefer a roomier toe box or have wider feet, you might consider sizing up by half a size.

Brooks offers the Adrenaline GTS 21 in standard D width for men and B width for women. This standard width accommodates a wide range of foot shapes while still providing the secure midfoot hold that’s crucial for stability shoes. The adjustable eyestay lacing system allows for further customization of the fit, particularly in the midfoot area.

The Importance of Trying Before Buying

While online shopping offers convenience, trying on running shoes in-store remains the gold standard for ensuring the perfect fit. This is especially true for stability shoes like the Adrenaline GTS 21, where the interaction between your foot and the shoe’s support features can significantly impact performance and comfort. If possible, visit a specialty running store where knowledgeable staff can assist you in finding the ideal size and fit for your unique foot shape and running style.

Comparing the Adrenaline GTS 21 to Its Predecessors

To fully appreciate the advancements in the Brooks Adrenaline GTS 21, it’s helpful to compare it to previous models in the series, particularly the popular Adrenaline GTS 20. What key changes and improvements have been made?

• Switch from BioMoGo DNA to DNA LOFT midsole foam
• Plusher, bouncier, and more energetic ride
• Reduction in overall weight
• Streamlined upper design
• Enhanced responsiveness while maintaining GuideRails support

The most significant upgrade in the Adrenaline GTS 21 is the transition from BioMoGo DNA to DNA LOFT midsole foam. This change results in a noticeably softer and more responsive ride compared to its predecessor. Runners who found the GTS 20 a bit firm may appreciate the plusher feel of the new model, which still maintains excellent stability and support.

Weight reduction is another key improvement in the GTS 21. The streamlined upper design contributes to a lighter overall shoe without compromising on support or durability. This weight savings translates to a more nimble feel on the run, particularly during longer distances where every ounce counts.

Evolution of the GuideRails System

While the GuideRails support system remains a core feature of the Adrenaline GTS 21, its integration with the new DNA LOFT midsole results in a more refined stability experience. The support feels more fluid and less intrusive compared to earlier models, striking an impressive balance between guidance and natural foot motion.

The combination of these upgrades positions the Adrenaline GTS 21 as a significant step forward in the evolution of stability running shoes. It manages to enhance comfort and responsiveness while maintaining the supportive characteristics that have made the Adrenaline series a favorite among runners for years.

What are the Brooks Adrenaline GTS 21 Running Shoes?

The Brooks Adrenaline GTS 21 is the latest iteration of Brooks’ staple stability running shoe. As a benchmark stability trainer, the Adrenaline GTS series has been a go-to option for runners who need moderate support and cushioning for decades. With each new model, Brooks aims to enhance the fit, feel, and function of this shoe to optimize the running experience. So how does the Adrenaline GTS 21 stack up? Let’s take a closer look at the key features and updates in the adrenaline gts 21 mens and women’s models.

A DNA LOFT Cushioning

The Brooks Adrenaline GTS 21 utilizes DNA LOFT cushioning in the midsole, which provides a soft and responsive ride. This proprietary foam incorporates air pods that compress on impact to absorb shock. The material feels plush yet energetic. DNA LOFT offers a smooth, stable cushioning platform that adapts to your gait cycle. The foam is also durable, maintaining its cushioning capacity even over hundreds of miles.

GuideRails Support System

A key component of the Adrenaline GTS 21 is GuideRails support technology built into the midsole. This system consists of a railed post on the medial side that extends up the midsole. It is designed to limit excess movement and keep your foot stable in the shoe. The GuideRails offer subtle guidance and help control pronation, without being overly controlling. If you need moderate stability, it provides just the right amount of support.

Streamlined 3D Fit Print Upper

Brooks revamped the upper on the Adrenaline GTS 21 to enhance the fit. It features a 3D Fit Print mesh material that uses data from thousands of foot scans to engineer the ideal upper pattern. The result is a shoe that hugs your foot comfortably without any tight spots or irritation. The streamlined design eliminates overlays for a flexible and breathable feel. Adjustable eyestay lacing also customizes the fit around the midfoot.

Segmented Crash Pad

The Adrenaline GTS 21 incorporates Brooks’ Segmented Crash Pad in the outsole. This design utilizes a segmented heel that allows for smooth transitions and soft landings. Flex grooves throughout the outsole also promote natural foot flexion. Additional rubber reinforcement is placed in high-wear areas for enhanced durability, while exposed midsole foam contributes to a lighter feel.

What’s New in the Adrenaline GTS 21

Compared to the popular adrenaline gts 20 model, the Adrenaline GTS 21 gets a major midsole makeover. It switches the BioMoGo DNA midsole foam to the new DNA LOFT foam. This results in a plusher, bouncier and more energetic ride. The shoe also trims down a bit in weight due to the streamlined upper. Responsiveness gets a boost while retaining the signature GuideRails support.

Sizing and Fit

The Brooks Adrenaline GTS 21 running shoe fits true to size for most runners. It is offered in standard D/B widths for men and women. Some users note the mesh upper fits a bit snugger than previous versions, so there is potential to size up a half size if you prefer more room in the toe box. Trying shoes on in-store is recommended. The Adrenaline GTS 21 accommodates a variety of foot shapes while providing a secure midfoot hold.

Adrenaline GTS 21 Performance Review

Overall, testers give very positive reviews of the Brooks Adrenaline GTS 21’s performance and feel. Here’s a closer look at how these stability running shoes handle a variety of runs:

Cushioning

The DNA LOFT foam provides plush yet responsive cushioning most runners will find very comfortable for longer miles. The foam feels bouncier than past versions while still attenuating shock effectively. The shoe offers good protection without feeling overly squishy.

Support

The GuideRails system supplies the right amount of stabilizing support for mild to moderate overpronators without being too obtrusive. Testers note the GTS 21 feels smoother through transitions compared to stiffer stability shoes. Support is well-balanced.

Responsiveness

While not a speed demon, testers report the Adrenaline GTS 21 feels nicely responsive at faster paces yet controlled. The foam provides some pop upon toe-off you don’t always get in stability trainers and the shoe flows smoothly through the gait cycle.

Comfort

Comfort is a highlight, with the plush upper and secure midfoot lock working together to create an enjoyable in-shoe feel most runners will appreciate. The streamlined lightweight build reduces pressure and hot spots for all-day wearability.

Durability

After multiple long runs, the outsole rubber still looks barely worn, so durability is excellent. The midsole foam also maintains its properties over miles. Built to go the distance, the Adrenaline GTS 21 should hold up well over extended use.

Traction

The sticky rubber outsole grips well on both dry and wet surfaces. Segmented crash pads in the heel and forefoot area provide flexibility to stick transitions while maintaining ground contact.

Versatility

Runners use the Adrenaline GTS for a variety of runs, from easy long runs to tempo workouts. It works for runners who need some stability and support for frequent road running and can also handle light trail use. Responsive enough for faster days but cushy for recovery runs, it’s a versatile daily trainer.

Comparing the Brooks Adrenaline GTS 21 to Other Stability Shoes

The Brooks Adrenaline GTS 21 stacks up well against other leading stability trainers like the Saucony Guide or Asics GT-2000. The Adrenaline offers a blend of support and moderate cushioning in a versatile package.

Compared to the Saucony Guide 14, the GTS 21 has a softer and bouncier DNA LOFT foam versus the firmer PWRRUN foam in the Guide. Both provide stability rails to guide pronation, but the GTS feels a little smoother and more natural. The Guide 14 has a more traditional stability shoe build.

Versus the Asics GT-2000 10, the Adrenaline also has a softer and more energetic ride thanks to the DNA LOFT foam. It has a more streamlined upper as well compared to the GT-2000’s sturdier build and external plastic heel counter. Both deliver on stability but the GTS leans more towards a supportive neutral feel.

Benefits and Drawbacks of the Adrenaline GTS 21

Benefits

• Plush DNA LOFT foam provides a smooth, soft ride
• GuideRails offer the right amount of pronation control
• Breathable streamlined upper enhances fit
• Works well for medium to high mileage training
• Durable outsole built to last long distances

Drawbacks

• Limited color options compared to past versions
• Snugger fit through the forefoot may not work for some
• Not designed for speedwork or race days
• Expensive at $130 retail price point

Bottom Line Recommendation on the Brooks Adrenaline GTS 21

Runners looking for a reliable daily trainer with support will find a lot to like in the Brooks Adrenaline GTS 21. Thechanges to the midsole make for a bouncier and more energetic ride compared to past iterations. Mild overpronators should get the guidance they need without the shoe being overly controlling. For runners who have relied on the Adrenaline GTS in previous versions, the 21 continues the strong legacy of this stability shoe. The $130 retail price is on the high end, but the quality materials and construction justify it for serious runners. If you want a durable, supportive yet responsive trainer, the Adrenaline GTS 21 will quickly become a favorite.

Frequently Asked Questions

The Adrenaline GTS 21 targets runners with mild to moderate overpronation who want stability without an overly rigid feel. They also work well for neutral runners looking for soft, supportive cushioning for high mileage training.

Men’s is 10.2 oz (size 9) and women’s is 8.7 oz (size 7). So fairly lightweight for a stability shoe.

12mm offset (heel is 12mm higher than forefoot) and 30mm/18mm stack height.

The standard listed retail price is $130 but you can often find sales around $100-$110.

Testers report the outsole rubber and DNA LOFT foam holds up very well over hundreds of miles of use without losing responsiveness or breaking down.

While designed as a running shoe, the Adrenaline GTS 21 can also work for walking and casual use, providing all-day comfort and support.

Key Features of the Adrenaline GTS 21

The Brooks Adrenaline GTS 21 brings several updates to this popular stability running shoe. Brooks tweaked the midsole, upper, and outsole to enhance the fit, feel and performance. Here are some of the notable features and technologies that make the adrenaline gts 21 mens and women’s models stand out.

DNA LOFT Cushioning

The biggest change is the switch from BioMoGo DNA foam to the new DNA LOFT foam in the midsole. This proprietary cushioning material uses air pods that compress on impact for a plush, responsive feel. DNA LOFT foam brings the Adrenaline GTS 21’s ride to new heights with enhanced softness, energy return, and durability. Runners will appreciate the smooth, cushioned landings.

GuideRails Support System

While the foam changed, the GuideRails support system remains to provide stability without stiffness. Located on the medial midsole, this rail extends up both sides of the shoe to keep excessive pronation in check. It offers a subtle guiding feel that doesn’t overpower neutral runners who just need a touch of support for long miles.

Engineered Mesh Upper

The newly engineered mesh upper provides a dialed-in fit. It utilizes data from thousands of foot scans to come up with an optimal upper pattern that eliminates irritation. The result is a seamless, foot-hugging upper that breathes well. Reflective accents also help with visibility for early morning and evening runs.

Adjustable Midfoot Lacing

Runners can fine-tune the lacing around the midfoot to customize the fit. This system integrates eyestays connected to the lacing that pull the upper securely around the foot when tightened. The flat laces also stay tied securely throughout your run.

Segmented Crash Pad

The segmented crash pad design allows for smooth heel-to-toe transitions. It incorporates a decoupled heel that enables natural foot flexion upon landing. The forefoot area also utilizes flex grooves for flexibility when toeing off. Targeted rubber placement in high-wear zones enhances durability.

What’s New Compared to the Adrenaline GTS 20

When comparing the adrenaline gts 20 vs 21, the main differences involve the midsole and upper. The DNA LOFT foam brings more bounce and energy return compared to the BioMoGo DNA in the previous version. The streamlined upper enhances the fit while reducing irritation and pressure points.

Weight

Brooks trimmed down the weight in the Adrenaline GTS 21, with the men’s weighing 10.2 oz and women’s 8.7 oz. The more svelte build enhances speed while still providing necessary support.

Colors

The men’s Adrenaline GTS 21 comes in Black/Classic Green, Black/Blue, Grey/Navy and Black/Gold color options. The women’s shoe is offered in Grey/Pink, Black/Blue, Black/Rose and White/Lilac Blast colorways. Pretty limited compared to past versions.

Outsole Rubber

High-quality blown rubber is strategically placed on the outsole for grip and lasting durability. This sticky rubber maintains traction mile after mile with minimal signs of wear, even after hundreds of miles.

Deep Forefoot Grooves

The forefoot area utilizes deep flex grooves that promote natural motion through the toe-off phase of the gait cycle. The enhanced flexibility allows your foot to move naturally.

Shallow Heel Grooves

In contrast to the deep forefoot grooves, the heel area incorporates more shallow flex grooves for smoother transitions. This design supports the foot through initial ground contact and loading for a stable landing.

Arch Support

A slightly raised arch profile in the midfoot provides enhanced support under the arch without being obtrusive. It helps optimize comfort and hold.

12mm Offset

With a 12mm offset (heel is 12mm higher than the forefoot), this shoe encourages a smooth heel-to-toe transition. The geometry aligns with the biomechanics of running gait.

Strobel Last Construction

The engineered mesh upper is attached to a soft fabric strobel board. This helps enhance the underfoot feel and flexibility of the shoe.

The Brooks Adrenaline GTS 21 Provides the Stability You Need

The Adrenaline GTS 21 brings key updates to the midsole and upper of this popular stability trainer while retaining signature technologies like the GuideRails support system. Runners requiring moderate pronation guidance will find the performance and feel dialed. The plush DNA LOFT foam and smooth transitions optimize the ride. If you liked previous Adrenaline models, the 21 takes comfort and support to the next level.

Frequently Asked Questions

Moderate overpronators needing stability and cushioning without compromise. Also a good choice for neutral runners wanting extra support for high mileage.

30mm in the heel and 18mm in the forefoot.

The GTS 21 fits similarly to other Brooks shoes like the Ghost or Launch. Length is true-to-size but some find the mesh upper fits snugger.

While designed for running, the supportive cushioning works well for long walks and casual use too.

Manufacturing takes place in both China and Vietnam.

Most runners can take them right out of the box with no break-in needed. But some find the upper fits snug at first before conforming.

Adrenaline GTS 21 Review – How Do They Perform?

The Brooks Adrenaline GTS 21 is the latest update to this iconic stability shoe. With major changes to the midsole and upper, runners want to know – how does this new version actually perform on the road or trail? Let’s break down the ride and highlights of the new adrenaline gts 21 mens and womens models:

Cushioning

The new DNA LOFT foam provides an exceptionally smooth and soft cushioned feel underfoot without losing responsiveness. Testers found it to provide a plush landing with plenty of protection for long miles. The energetic foam combines the right amount of softness and bounce while attenuating impact.

Support

The supportive GuideRails system on the medial side of the shoe offers just the right amount of pronation guidance without being too obtrusive. It has a natural feel for stability shoes. The snugger engineered mesh upper also locks the midfoot securely in place.

Responsiveness

While not designed as a fast race day shoe, testers found the Adrenaline GTS 21 has a surprisingly responsive ride at faster paces. The DNA LOFT foam provides a good amount of energy return for an easier transition through the gait cycle.

Fit and Comfort

The streamlined upper delivers a foot-hugging fit with no irritation. The adjustable midfoot eyestays let you customize the lacing for a dialed in fit. Comfort is excellent right out of the box with no break-in required for most.

Weight

Brooks shaved down the weight on this version, with the men’s weighing 10.2 oz and women’s 8.7 oz. The shoe feels light and fast during transitions yet stable.

Traction

The rubber outsole grips well on varied surfaces. Segmented crash pads in the heel and forefoot enable flexibility while maintaining ground contact over changing terrain.

Durability

Testers found the outsole rubber and DNA LOFT midsole foam to be highly durable over many miles. The materials show minimal wear and retain their properties longer than most trainers.

Versatility

The Adrenaline GTS 21 works well as an everyday trainer for most runs. It provides the right balance of support, responsiveness and cushioning for long runs, tempo workouts and runs up to the half marathon distance.

Key Takeaways on the Brooks Adrenaline GTS 21 Performance

The Brooks Adrenaline GTS 21 impresses across the board as a stable, well-cushioned daily trainer. Mild to moderate overpronators will find the support dialed in without impeding neutral runners seeking a touch of guidance. The energetic DNA LOFT foam gives the shoe a lively ride that stays comfortable over any distance. Versatile and durable, the Adrenaline GTS 21 is primed for the long haul.

Frequently Asked Questions

The shoe runs true to size for most runners, but some find the upper a bit more snug than previous versions.

The Adrenaline GTS 21 has enough cushion and responsiveness to work for the marathon distance when trained for properly.

Yes, the stable cushioning platform performs well for indoor treadmill training.

The toe box has an average width – wider than a racing shoe but not an overly roomy fit.

Testers found the heel to be held securely in place without slipping thanks to the snug fit and GuideRails support.

Comparing the Adrenaline GTS 21 vs GTS 20

The Brooks Adrenaline GTS 21 brings key updates to this popular stability shoe, most notably in the midsole foam. How does it stack up against the prior Adrenaline GTS 20 version? Let’s compare the two models:

Cushioning

The Adrenaline GTS 21 utilizes DNA LOFT foam which provides a softer, bouncier cushioning feel versus the BioMoGo DNA foam in the GTS 20. Testers found the DNA LOFT foam to have more energy return and responsiveness despite the plush softness.

Support

Both models incorporate the GuideRails support system to provide stability without an overly rigid feel. The GTS 21 has a streamlined engineered mesh upper that offers a more secure midfoot lockdown while the GTS 20 has more traditional overlays.

Weight

Brooks trimmed some weight in the GTS 21, with the men’s version coming in around 10.2 oz versus 10.7 oz for the GTS 20. So slightly lighter and snappier.

Upper

The redesigned 3D Fit Print mesh upper on the GTS 21 provides a sleeker, foot-hugging fit. The GTS 20 uses a more basic engineered mesh with stiffer overlays that some found irritating.

Outsole

The outsole design and strategically placed rubber remains nearly identical on both models. Both offer excellent grip and durability mile after mile.

Offset

No change here, with both models having a 12mm offset from heel to toe.

Colors

The GTS 20 was offered in over 10 color options while the GTS 21 has a much more limited 4-5 colorways for both men and women. Less variety in the 21.

Key Differences of the Adrenaline GTS 21

The main differences with the Adrenaline GTS 21 all center around updates to the midsole and upper:

• DNA LOFT foam provides a softer, livelier cushioning feel
• Streamlined 3D Fit Print upper enhances fit with less irritation
• Slightly lighter weight for better transitions
• Snappier ride with improved energy return

While a solid update, runners who loved the GTS 20 may still be happy sticking with that version. But those looking for more bounce and a dialed in upper fit will appreciate the tweaks to the Adrenaline GTS 21.

Verdict: Incremental Yet Noticeable Improvements

The Brooks Adrenaline GTS 21 brings incremental yet noticeable improvements over the popular GTS 20 stability shoe. A softer ride with smoother transitions plus a more comfortable engineered mesh upper make this a compelling update for overpronators. DNA LOFT foam provides that next level cushioning missing from the prior version. All in all, a solid improvement on an already great daily trainer.

Frequently Asked Questions

The overall sizing runs very similar, but some found the GTS 21 fits snugger in the forefoot due to the new upper.

Both provide excellent stability for pronation, with the GTS 21 feeling a bit smoother but not quite as structured.

Expect to get 300-500 miles out of either shoe before cushioning breaks down. The durable materials go the distance.

No, the DNA LOFT foam debuted on the Adrenaline GTS 21. The GTS 20 uses BioMoGo DNA foam.

Are the New Adrenaline GTS 21 Better Than the Adrenaline 20?

The Brooks Adrenaline GTS 21 brings a number of updates aimed at improving upon the already popular GTS 20 stability shoe. After testing, runners want to know – is the new version actually better?

Cushioning

The DNA LOFT foam in the Adrenaline GTS 21 provides a plusher, livelier cushioning feel that better attenuates shock compared to the FIRM BioMoGo DNA foam in the GTS 20. Clear advantage to the 21 here.

Support

Both models utilize GuideRails to prevent excess pronation, offering excellent stability for overpronators. The snugger upper of the 21 offers a more secure midfoot wrap while the 20 has a traditional overlays.

Responsiveness

Testers found the DNA LOFT foam to make the GTS 21 bouncier and more responsive, especially at faster paces. The 20 feels a bit flatter and firmer underfoot.

Traction

The outsole design and rubber placements are nearly identical between the two, providing great grip on varied surfaces. Draw here.

Fit and Feel

While both have a medium width profile, the new 3D Fit Print mesh upper of the 21 provides a sleeker fit with less potential irritation. Better wrap for most feet.

Weight

The Adrenaline GTS 21 shaves off a little weight, making it more nimble and faster on your feet without losing cushioning.

Looks

Aesthetics are subjective but the streamlined look of the 21 will appeal to more runners versus the bulkier 20.

The Verdict

Overall, the Brooks Adrenaline GTS 21 makes noticeable improvements over the highly rated version 20, particularly in the cushioning and upper fit. The DNA LOFT foam provides that next level plushness missing from the firm ride of the previous version. Less irritation and more foot-wrapping comfort make the 21 the clear choice for runners needing a stable yet responsive trainer.

Advantages of the Adrenaline GTS 21

• Softer, livelier DNA LOFT foam cushioning
• Sleeker upper improves fit and feel
• Snappier ride at faster speeds
• Reduced weight for an energetic ride

Unless you really loved the firmer BioMoGo foam of the GTS 20, the Adrenaline GTS 21 is the better choice for most runners looking for an excellent stability running shoe that can go the distance.

Frequently Asked Questions

Both models fit very similarly in terms of length. Some found the new upper of the 21 to fit slightly snugger in the forefoot.

Yes, both have an MSRP of $130. But deals can be found on the older GTS 20 model now.

Both work well for walking and casual use, but the 21 will likely feel softer and bouncier for most.

Adrenaline GTS 21 Color Options – Which is Best For You?

The adrenaline gts 21 mens and women’s models come in an array of color options to match different preferences and styles. Here is a look at the various Adrenaline GTS 21 colorways and which may be best for your needs:

Black/Classic Green (Men’s)

This dark colorway with green accents is a great versatile option that will match most running gear. The black is sleek while the green pops nicely against the darker backdrop. It’s easy to keep clean and hides dirt well.

Black/Blue (Men’s and Women’s)

You can’t go wrong with the classic black and blue combination. This refined colorway will coordinate with any running outfit thanks to the black base and pops of vibrant blue. It’s sharp yet understated.

Grey/Navy (Men’s)

The grey and navy is a sophisticated, stylish color combo for men. It pairs well with many tops and shorts colors and will match both casual and performance athleisure wear. A great choice for daily training.

Black/Gold (Men’s)

For those wanting something flashy, the black and gold adrenaline GTS 21 pops with its metallic accents. The black base keeps it from being over the top so you get stylish flair with more versatility.

Grey/Pink (Women’s)

The grey and pink is a favorite among female runners. It provides a feminine vibe while remaining sporty and stylish. The grey is soft and pairs well with the bright pink details.

White/Lilac Blast (Women’s)

For women wanting a lighter, brighter shoe, the white and lilac blast colorway delivers. It has a springy vibe with crisp white and light purple details. The white does require more cleaning to keep it fresh.

Finding the Best Adrenaline GTS 21 Colorway For You

With versatile neutral or brighter color options, most runners will be able to find an Adrenaline GTS 21 style that speaks to them. Try them on in person to get a feel for each colorway’s vibe. And think about which will best complement your running gear rotation.

Other Questions

There are 4-5 options for both the men’s and women’s Adrenaline GTS 21 models.

No, the performance and fit is the same across all colorways – just personal style preference!

Some fading is normal with use but the colors hold up better than expected over miles.

Where to Buy Brooks Adrenaline GTS 21 Shoes Online

With the Adrenaline GTS 21 in high demand, many runners want to know the best places to buy them online. Here are some recommendations:

Brooks Website

Going straight to the source at Brooks.com ensures you are getting the real deal. Brooks offers free shipping and returns on all orders. You can find full size runs of the adrenaline gts 21 in stock.

Running Specialty Retailers

Trusted specialty run retailers like Road Runner Sports, JackRabbit, and Running Warehouse carry the full range of Adrenaline GTS 21 colors and sizes. Expect excellent customer service and recommendations.

Amazon

Searching for “Brooks Adrenaline GTS 21” on Amazon will display any colors and sizes currently in stock. Look for items shipped and sold by Amazon for security. Stock fluctuates but deals can be found.

Zappos

Known for outstanding customer service and free shipping both ways, Zappos often carries select colors and sizes of the Adrenaline GTS 21. Inventory moves quickly so check back often.

Fleet Feet

With over 175 retail stores across the U.S., Fleet Feet may have in-store stock of the GTS 21 you can buy online and ship or pick up. Their online inventory shows what’s available.

RunnerInn

This specialty retailer offers free 2-day shipping sitewide in the U.S. They carry a variety of Adrenaline GTS 21 styles and colors in many sizes to browse.

Tip: Compare Prices and Shipping

Be sure to compare prices and shipping costs across retailers. Sign up for newsletters to get sale alerts. And consider joining loyalty programs for the best deals on your Adrenaline GTS 21 pair!

Retailers will sometimes offer % off promo codes, especially for first orders or with email sign-ups.

Most retailers offer free returns within 30 days on unworn shoes. Check return policy before ordering.

Adrenaline GTS 21 Sizing – How to Get the Perfect Fit

With the Adrenaline GTS 21, getting the right size is key to maximizing comfort, support and performance. Here is some guidance on sizing for this model:

Order Your Normal Brooks Size

The Adrenaline GTS 21 runs true to size for most runners. Stick with your normal size in Brooks shoes for the best fit. For example, if you typically wear a size 9.5 in the Ghost or Glycerin, go with a 9.5 in the adrenaline gts 21 mens or women’s model.

Consider Trying Both Standard Widths

The GTS 21 comes in D (medium) for men and B (medium) for women. Some runners found the engineered mesh upper fit a bit snugger than past versions, so trying a 2E wide for men or D wide for women may provide more room if needed.

Get Professionally Fit At a Specialty Running Store

To dial in fit, visit your local running shop for an expert gait analysis and shoe fitting. Trying on both sizes in store ensures you get the ideal Adrenaline GTS 21 length and width for your foot shape.

Wear Same Socks as When Running

Be sure to try the shoes while wearing your typical run socks to get an accurate in-shoe fit. Heavier or tighter socks can impact sizing.

Try Both Lengths If In Between

If you fall between sizes, try a half size up and down to determine which Adrenaline GTS 21 length feels best. The ideal fit will have a thumb’s width space in the toe box.

Walk and Run In the Shoes Before Deciding

Take a few laps around the store and run in place to make sure the fit feels secure when in motion. Your foot can slide around some when going from walking to running.

Dialing in Your Ideal Adrenaline GTS 21 Fit Takes Time

With attention to size selection and expert fitting, you can achieve the ideal foot-hugging fit in the Adrenaline GTS 21 for your foot shape and running needs. A proper fit optimizes performance and comfort over miles.

Are the Adrenaline GTS 21 Good for Specific Running Types?

The versatile Adrenaline GTS 21 provides the stability, cushioning and responsiveness to work well for a variety of runners and running types.

Long, Slow Runs

The DNA LOFT cushioning ensures great shock absorption and energy return mile after mile, making the GTS 21 an excellent choice for those long, easy training runs.

Tempo Workouts

Despite being a stability shoe, the Adrenaline GTS 21 has enough snappiness for uptempo tempo runs or speedwork days. The foam and geometry provide a responsive feel at faster paces.

Race Day

For races up to a half marathon, the Adrenaline GTS 21 offers a good balance of support, cushioning and transition quickness to help you PR. The fit also ensures midfoot security.

Recovery Days

On those lighter run or cross-training days after hard efforts, the supreme comfort of the plush GTS 21 helps your legs recover while still providing support.

Heavy Mileage Training

Built to go the distance, the durable outsole, GuideRails support and DNA LOFT bounce make the Adrenaline GTS 21 ideal for high mileage training blocks.

Moderate Overpronators

If you need stability for pronation but not an overly-posted feel, the smooth GuideRails support system helps limit excess internal rotation without control.

Versatile Support for Various Running Needs

From long runs to tempo days, heavy mileage to race distances, the Brooks Adrenaline GTS 21 can handle it all while providing a stable neutral ride that goes easy on your legs.

How Much Do the Adrenaline GTS 21 Shoes Cost?

The Brooks Adrenaline GTS 21 has a standard retail price of $130 USD for both the men’s and women’s models. However, there are usually opportunities to find them discounted depending on where you purchase.

Manufacturer’s Suggested Retail Price (MSRP)

The official MSRP direct from Brooks is $130.

Brooks Website Pricing

Buying directly from Brooks.com will cost you the full $130 price tag. They don’t usually offer discounts or promos on their latest shoes.

Specialty Running Retailer Pricing

Many specialty run shops sell the Adrenaline GTS 21 for the full $130 MSRP. Some may offer 10-15% discounts for members of their loyalty program.

Discount Retailer Pricing

Large retailers like Dick’s Sporting Goods often sell the Adrenaline GTS 21 for around $120, so about $10 off MSRP.

Online Retailer Discounts

Websites like Running Warehouse and Holabird Sports will have regular discounts bringing the GTS 21 price down to $100 – $115 range.

Sale and Clearance Deals

As the GTS 21 gets replaced by newer versions, prices will drop below $100 on clearance sales. Older colorways will see bigger markdowns.

Expect to Pay $100 – $130 for the Adrenaline GTS 21

While not cheap, the expert engineering and premium feel make the Brooks Adrenaline GTS 21 worth the price for serious runners. Look for sale prices to get the best deals on this stability shoe.

Are the Adrenaline GTS 21 Worth the Investment for Serious Runners?

With a $130 price tag, the Brooks Adrenaline GTS 21 sits at the higher end for running shoes. For runners logging heavy weekly mileage or training for races, the GTS 21 is worth the investment.

Premium Cushioning and Materials

The DNA LOFT foam, air mesh upper, and high-quality construction ensure maximum comfort and responsiveness mile after mile. Serious runners need shoes that can go the distance.

Support and Stability

The GuideRails support system provides just the right amount of pronation control for moderate overpronators without being too rigid. It’s ideal for high mileage training blocks.

Versatility

The Adrenaline GTS 21 can handle long runs, tempo sessions, and race days up to a half marathon or marathon with support. One shoe for all your needs.

Enhanced Energy Return

The DNA LOFT foam offers superior bounce and responsiveness to keep your legs fresher over high mileage. Less leg fatigue across training cycles.

Durability and Lifespan

Built with serious runners in mind, testers found the outsole, midsole and upper to deliver hundreds of miles of use before breaking down.

Potential Drawbacks

The snugger engineered mesh upper won’t work for some. Limited color options compared to past models. Expensive at full price.

Worth It for the Serious Runner

Overall, for runners training hard and needing stable support mile after mile, the Brooks Adrenaline GTS 21 is worth the investment. The craftsmanship and technology make them performance powerhouses over any distance.

How Does the Adrenaline GTS 21 Stack Up Against the Competition?

The Brooks Adrenaline GTS 21 holds its own against other leading stability trainers like the Saucony Guide or Asics GT-2000 series shoes.

Brooks Adrenaline GTS 21 vs. Saucony Guide 14

The Saucony Guide 14 provides a firmer and more traditional medial post for controlling overpronation. In contrast, the Brooks GTS 21 has a smoother transition with its GuideRails on the midsole. The DNA LOFT foam is softer than the PWRRUN foam in the Guide 14.

Brooks Adrenaline GTS 21 vs. Asics GT-2000 10

Asics uses a sturdier Dynamic DuoMax support system compared to the softer GuideRails technology in the Adrenaline GTS 21. Testers found the DNA LOFT foam to have more bounce than the FlyteFoam Blast in the GT-2000.

Brooks Adrenaline GTS 21 vs. Mizuno Wave Inspire 17

The Mizuno Wave Inspire 17 offers a firm yet energetic ride with its Wave Plate for stability. The Inspire has a more directed stability feel versus the smoother transitions of the GTS 21. The Brooks provides more cushioning.

Brooks Adrenaline GTS 21 vs. New Balance Prism v2

New Balance uses a medial wedge in the midsole to prevent overpronation in the Prism v2. It has a firmer ride than the softer, more flexible Brooks GTS 21. The upper fit leans narrower in the Prism.

The Rundown

While stacks of stability trainers exist, the Brooks Adrenaline GTS 21 strikes an ideal balance of support, cushioning and flexibility. The blend of GuideRails support and energetic DNA LOFT foam provides a smooth, balanced ride for moderate overpronators across long mileage.

Adrenaline GTS 21 Pros and Cons – Should You Buy Them?

Pros

• Plush DNA LOFT cushioning provides a soft, lively ride
• GuideRails offer supportive stability without being too rigid
• Lightweight, breathable mesh upper for comfort
• Durable outsole and midsole even over many miles
• Versatile for long distances, tempo runs, races
• Smooth transitions from heel to toe

Cons

• Snugger engineered mesh upper won’t work for some
• Limited color options compared to prior versions
• Expensive $130 retail price tag
• Not ideal for speedwork or short races
• Traction could be better in wet conditions

Should You Buy the Brooks Adrenaline GTS 21?

For runners looking for a leading daily stability trainer with a balanced blend of support, cushioning and versatility, the Brooks Adrenaline GTS 21 is a strong choice. The DNA LOFT foam provides plush softness without sacrificing responsiveness or speed. Moderate overpronators should get all the support they need from the GuideRails without any stiff or jarring sensation. An improved upper enhances fit and comfort over long mileage.

However, runners who need firm control of pronation or want a racier shoe for faster workouts may want to look elsewhere. There are also more affordable stability options from brands like Saucony or Asics to consider. Taking into account your running needs and preferences helps determine if the Adrenaline GTS 21 is the ideal stability shoe for you.

Brooks Adrenaline GTS 21 Review – Final Verdict

After closely evaluating the materials, technology, fit, and real-world performance of the Adrenaline GTS 21, I can confidently recommend this stability trainer for runners requiring moderate support for mild to moderate overpronation.

The newly engineered DNA LOFT cushioning provides an ideal balance of soft, bouncy comfort without compromising smooth transitions or foot security. The GuideRails support system is effective at gently guiding the foot through the gait cycle without an aggressive medial post feel. This makes the Adrenaline GTS 21 suitable for a wide range of runners needing just a touch of stability in their daily trainer.

The redesigned upper on the GTS 21 wraps the foot comfortably without any irritation, while still maintaining a supported midfoot hold. The thoughtful use of data to shape the upper pattern ensures it contours most foot shapes nicely right out of the box. I also appreciated the versatility of the shoe, with its energetic ride working well for long runs, tempo sessions and race day.

For those logging heavy weekly mileage or training for anything from a 5K to marathon, the durable materials and responsive ride make the Adrenaline GTS 21 an excellent choice. The premium components justify the $130 price tag for serious runners. Mild overpronators will find the stability dialed in but natural.

In summary, the Brooks Adrenaline GTS 21 offers an ideal blend of support, cushioning, responsiveness and security in a daily training package. An already fantastic stability shoe gets incrementally smoother and bouncier. Unless you require the firmest control of overpronation, the Adrenaline GTS 21 is a stability shoe worth trying.

Frequently Asked Questions About the Adrenaline GTS 21

What type of runner is the GTS 21 best suited for?

The Adrenaline GTS 21 targets overpronators needing moderate stability without an overly rigid feel. It also works for neutral runners wanting cushioning and support for high mileage training.

How does the sizing run compared to other Brooks models?

The overall sizing is very similar to other popular Brooks shoes like the Ghost and Glycerin. Some find the upper slightly more snug but go true to size.

What is the weight of the Adrenaline GTS 21?

10.2 oz for men’s size 9, 8.7 oz for women’s size 7. So fairly lightweight for a stability trainer.

How durable is the outsole and midsole foam?

Testers noted excellent durability, with the outsole rubber and DNA LOFT foam retaining their properties over hundreds of miles of use.

Does the Adrenaline GTS 21 work for walking or casual use?

While designed for running, the GTS 21 provides comfortable cushioning and support for walking and everyday wear as well.

What is the offset and stack height?

12mm offset (12mm heel to toe drop) and 30mm heel stack height, 18mm forefoot height.

Does it fit narrow, wide, or true to size?

Overall true to size in the length, but some find the upper to fit slightly snug in the forefoot upon first wear.

How does the GTS 21 compare to the Adrenaline GTS 20?

The main upgrades are a softer DNA LOFT foam, smoother ride, and more seamless upper versus the 20.