Brooks Adrenaline

Brooks Sports introduced the Adrenaline model in 1999, debuting their commitment to meeting runners' need for supportive yet cushioned footwear. As the Adrenaline line has evolved over the years, certain characteristics have remained consistent. A focus on adaptability, a DNA midsole for soft responsiveness and GuideRails support to keep excessive inward rolling of the foot in check. This optimal blend of cushioning and guidance is what has established Adrenaline's trusted reputation as a workhorse shoe for stability seekers.

As a new offering, the initial Adrenaline builds focused intensely on stabilising technologies to curb excessive pronation combined with ample foam cushioning for comfort. Key ingredients like medial posts, midsole segmentation and diagonal rollbars provided multi-layered stability. Even in early models like the Adrenaline GTS 6, key features were present that offered support through dual-density posts and catered to flexibility via segmentation in the outsole. The BioMoGo foam compound offered resilient, adaptive padding for smoothing out footfalls over various paces. Over the early models, Brooks tinkered with pronation control elements but largely stayed true to providing firm guidance. Meanwhile, cushioning focused almost exclusively on shock attenuation without much emphasis on energy return or response. The overall sensation erred firmly toward overpronators requiring significant correction with each footfall. Neutral runners or those needing only moderate support would likely find the ride too aggressively stable. However, these formative Adrenaline releases cemented Brooks as a specialist in catering to runners requiring pronation management. It set the foundation for later technology and design breakthroughs adjusting stability and cushioning elements toward more balanced sensations accommodating wider ranges of runner biomechanics. However, the concentrated stability support genesis remains an integral part of the model legacy.

Several key updates throughout the Adrenaline GTS lineage indicate Brooks' willingness to adapt and enhance both cushioning and stability traits to align with evolving runner expectations. The Adrenaline GTS 14 proves enlightening with midsole and upper adjustments tailored toward more neutral runners while still retaining stabilising features. Prior builds strongly targeted overpronators requiring firm medial support. However, feedback indicated demand for a more balanced platform suitable for mild stability needs yet cushioned enough for high mileage training. Additional models would follow suit tweaking multi-density midsoles and posts to provide pronation support that could kick in when needed but avoid overly correcting neutral gaits. Eventually, the stability paradigm shifted entirely with the GuideRails system dynamically reacting to each runner's biomechanics on an individualised basis. No longer did the model assume a need for maximum correction. Cushioning also morphed dramatically from firm shock attenuation to energy-returning propulsion technologies. Such adaptations indicate the franchise prioritises staying relevant, versatile and able to match runner expectations across the neutral and stability spectrums.

Much of the Adrenaline's versatility comes from providing appropriate support and plush comfort without feeling clunky or rigid underfoot. The foundation of this well-balanced ride experience lives within Brooks’ proprietary GuideRails support system and DNA LOFT cushioning. GuideRails frames the midsole keeping excess foot motion contained and aligned. This corrective support sits lower than old-school posts to feel more natural guiding your foot's movements and promoting smoother transitions. Think of it like the bumper lanes when learning to bowl keeping you out of the gutter. The angled rails along both sides of the shoe work similarly to provide pronation control that adjusts based on how much you need it. DNA LOFT cushioning ensures the supportive structure doesn't translate into harsh or jarring ride quality. This modern midsole foam delivers a soft yet springy sensation. Visible air pockets allow for compression underfoot as lively rebound propels you into the next step. Combined, GuideRails and DNA LOFT balance support with comfort for confident miles.

Research on 120 wear-testers found the Adrenaline GTS 21 accommodated a wide range of foot types and biomechanics thanks to its relatively balanced build. Runners noted the stability elements melded well with standard neutral trainer expectations of cushioning and flexibility. The adaptable fit meant the model could truly perform as a daily training partner for varied running needs. While marketed as a stability shoe, the Adrenaline provides just enough pronation management for those requiring mild support alongside an agreeable platform for neutral runners going for high daily mileage. Having some structure to reinforce mechanics makes it suitable for longer excursions where form fatigue can set in. However, the execution is subtle enough for those seeking a well-cushioned road cruiser shoe that happens to have stability elements. Discussion thread user A. Højbjerg attested to this versatility sharing that the Adrenaline model has been their yearly update for over a decade based on the model's balance of support and comfort. As an adolescent, they required significant stability features but now appreciate the moderate and unintrusive control as a mature runner. For those seeking robust pronation support, the Adrenaline GTS may serve as an introductory option before evaluating models with dedicated stability mechanisms like medial or dual-density posts.

In addition to accommodating runners across the stability spectrum, the versatile performance also adapts to a variety of training paces and mileage depending on the runner's ability level and fitness status. The engineered mesh upper keeps the fit breathable over longer mileage while the crash pad segmentation provides flexibility to handle quicker tempo efforts. Discussion thread user A Højbjerg attests to utilising the Adrenaline for long runs, intervals, tempo sessions and recovery days owing to its blended platform. The Podcast “Marathons and Motivation” praised the well-rounded proficiency for marathon preparation thanks to a comforting ride that makes miles fly by. Meanwhile, the blog “Running the Lanes” used the model for faster threshold repeats citing the responsive DNA foam that provides a snappy toe-off. As a testament to the skilled blending of technologies, the Adrenaline can truly function as a daily training partner for most paces whether you are working on endurance, speed or just easy mileage fitness. The model adapts admirably across training needs making it a versatile option.

Introduced in 2018, GuideRails departed from the long-held tradition of aggressive medial posts that often felt overly corrective. This system utilises angled midsole rails that extend up the midsole edges bordering the underfoot to provide dynamic support that feels almost customised to your natural movements and degree of pronation. Emily Canino, Lead Researcher of Biomechanics and Performance Analysis at Brooks Running explains that GuideRails technology was modelled on studying motion analysis of runners on treadmills to understand how their feet naturally move throughout gait cycles. Researchers could then identify proper alignment baselines and what excessive pronation looks like. This informed angling of the rails and optimal placement about foot positioning and degree of needed midsole compression. The beauty of GuideRails lies in its holistic adjustment to each runner’s biomechanics and pronation needs. As the foot rolls inward, the rail subtly kicks in to compress just enough to prevent excess internal rotation before lifting the foot into propulsion off the toe. Unlike firm medial posts that force correction, GuideRails work in harmony with natural motion making for dynamic stability that feels more fluid. It requires no input from the runner, just authentic responses to each footfall.

Serving as the pillowy core of the Adrenaline franchise is Brooks’ DNA LOFT cushioning midsole compound. This updated foam utilises a unique manufacturing process to create visible air pockets that compress and rebound for soft landings with ample energy return to fuel transitions. The proprietary introduction of additives creates long-chain molecules for an extra bounce-back effect that propels you forward. Mark Sterkenburg, Senior Principal Researcher of Biomechanics at Brooks notes that DNA LOFT balances cushioning and durability by scattering the air pockets rather than segmenting into isolated encapsulated chambers underfoot. This allows for fluid transitioning stability while still improving energy efficiency over previous DNA foam iterations. The generously pillowy construction helps foster a smooth heel-to-toe rolling process so each step flows effortlessly into the next. Wear tester feedback indicates that the DNA LOFT foam provides a distinctly marshmallow-like sensation. The generous heaping of air pods compresses easily underfoot for noticeable yet stable cushioning that feels highly dampening.

However, the long-chain additives prevent excess sinking for maintained responsiveness. Testers felt well-protected from hard ground impact yet enjoyed a smooth toe-off bounce nimble enough for faster paces. The DNA LOFT Innovation continues propelling the Adrenaline franchise into the future by blending modern design with proprietary compound technology. Generous DNA cushioning equates with the longstanding Brooks focus on comfort for moderate to high mileage. Meanwhile, engineered air pods paired with long-chain additives foster adaptable softness - cushioning that gives them returns energy to keep turnover smooth across paces. This advanced foam looks poised to satisfy neutral and stable runners alike.

To evolve fit personalisation beyond the usual array of numeric sizing and multiple-width options, Brooks debuts 3D-printed structured components for elevated comfort and security. Using a process called 3D Fit Print engineered mesh, the company embeds thin skin-like layers where runners need it most for areas prone to irritation or movement such as the heel counter and midfoot saddle. This innovative direct-to-textile printing bonds the external layer to the inside surface of the main upper. Strategic stretch and structure pair together for a truly customised fit. Zones with printing offer an adaptable secure lockdown while unprinted swaths allow for flexibility to prevent stiffness or bunching during transitions. The resulting sensation feels almost bespoke catering to your foot shape. Early feedback from wear testers indicates immense approval. The customised heel feels almost moulded to your form for premium comfort while structured overlay-free overlays promote seamless striding. This cutting-edge printed fit system points toward the future of footwear catering running silhouettes to your distinct foot needs rather than relying on generic shapes.

In 2021, Brooks shifted all shoe packaging to 100% recycled cardboard sourced from wind and hydropower facilities. This is built upon existing programs like BioMoGo biodegradable midsoles and recycled shoe donations to underscore an expanding commitment to eco-conscious footwear and business practices. However, work is still to be done when examining shoe materials. Recent sustainability report company data indicates 95% of Brooks carbon footprint stems from materials and manufacturing. As more environmentally friendly textiles enter the market, increased incorporation into footwear lines can drive positive gains lowering energy expenditures and waste. Small steps have been taken with models like the Adrenaline GTS 22 utilising an upper featuring 50% recycled content to reduce landfill burden without sacrificing performance. Brooks must continue pushing for more recycled materials adoption across their product lines - even in proven models like the Adrenaline franchise. As Mark Sterkenburg explains “using recycled materials is central to lowering our carbon footprint” so incremental materials reformulation presents the most impactful path for significant emissions reduction in alignment with corporate responsibility values.

Brooks Adrenaline GTS 21 — Arriving in 2020, the Adrenaline GTS 21 synthesised adaptive support and soft comfort for daily training cruiser. The streamlined design modernised visual aesthetics shedding some stability shoe clunk in favour of sleek flexibility grooves along the outsole. Breathable engineered mesh with structural skin-like printing offered foot-cradling comfort marrying security and adaptability. The midsole continued an emphasis on energetic cushioning feeling both soft and responsive. For even more comfort, the sock liner utilised premium Ortholite foam to prevent moisture accumulation and hotspots over long mileage. Durable rubber reinforced high-wear crash pad segments for fluid transitions through gait cycles while internal GuideRails directed each stride. Drag during transitions was minimised for effortless plodding miles while GuideRails kept mechanics in check when form faltered. As a reliable daily trainer with modernised trimmings, the Adrenaline GTS 21 carried signature model traits coveted by both dedicated and new franchise fans.

Brooks Adrenaline GTS 22 — In 2021, the Adrenaline series levelled up sustainable credentials debuting an upper with 50% recycled content from five plastic water bottles alongside midsole BioMoGo. Strengthened heel counters enhanced rear security while streamlined, bonded eyelets reduced irritation potential. Plush DNA LOFT v2 midsole foam catered to soft yet energised cushioning for balanced comfort through every phase of transition. The sock liner and strap anchor also gained recycled updates for further eco-conscious improvements while retaining prized performance. To shed weight, Brooks trimmed the outsole rubber and optimised crash pad placement. Inside the shoe, moderated GuideRails supported each stride and then lifted to promote natural movement and optimal alignment step after step. The sustainability integrations earned applause driving the model in an eco-friendlier direction as recycled materials adoption continues to be a priority. While a subtle update, the Adrenaline GTS 22 indicated Brooks' commitment to responsible, high-quality performance footwear.

Brooks Adrenaline GTS 23 for men and women — The Adrenaline GTS series has catered to moderate overpronators for over 20 years by blending stability and soft cushioning. As a testament to the model’s trusted versatility, the 2023 GTS 23 iteration focuses on nuanced refinements to an already proven formula. Signature technologies like the GuideRails support system and DNA LOFT cushioning return with slight material updates toward that harmonious balance of guidance and comfort. Responsive DNA LOFT version 2 foam incorporates air pods and proprietary chemistry for energetic softness ideal for high mileage. Generous heel cushioning attenuates impact while long-chain additives prevent excess sinking that can slow turnover. At a 12mm drop, heel strikers will feel well-protected during each footfall. For subtle stability that won’t overcorrect neutral strides, the GuideRails frame integrates into the midsole to customise medially and laterally based on the degree of pronation. Bonded overlays on the 3D Fit Print upper further secure the midfoot when fatigue sets in without restricting natural motion.

What are the key features of the Brooks Adrenaline GTS?

The Brooks Adrenaline GTS features the GuideRails® support system for targeted stability, DNA LOFT v2 cushioning for a soft and responsive ride, and a 3D Fit Print mesh upper for a secure and comfortable fit.

How does the Brooks Adrenaline GTS 23 compare to previous versions?

The Adrenaline GTS 23 has subtle changes that maintain the essence of the series while improving fit and ride. The midsole is slightly softer, and the shoe is 0.1 oz lighter than the GTS 22. The upper material is softer and more flexible, providing a roomier fit.

Who should buy the Brooks Adrenaline GTS?

The Adrenaline GTS is suitable for runners who want a moderate stability shoe with a traditional fit, high drop, and highly cushioned heel. It's ideal for daily training runs and those who require additional support and guidance.

Is the Brooks Adrenaline GTS good for overpronation?

Yes, the Adrenaline GTS is designed to provide stability and support for runners who overpronate. The GuideRails® support system helps keep the runner's body in proper alignment, reducing the risk of injury.

What is the drop of the Brooks Adrenaline GTS?

The Brooks Adrenaline GTS has a 12mm heel-to-toe drop.

How much does the Brooks Adrenaline GTS weigh?

The Brooks Adrenaline GTS 23 weighs 10.1 oz (286 g) for a men's size 9 and 9.1 oz (258 g) for a women's size 8.

What type of arch support does the Brooks Adrenaline GTS provide?

The Adrenaline GTS offers moderate arch support, making it suitable for runners with low to medium arches. The GuideRails® support system helps maintain proper alignment and provides targeted stability.

How durable is the outsole of the Brooks Adrenaline GTS?

The outsole of the Adrenaline GTS features a durable rubber compound that provides reliable traction and withstands the demands of regular running. The outsole also incorporates flex grooves for enhanced flexibility and a more natural range of motion.

Is the Brooks Adrenaline GTS true to size?

The Brooks Adrenaline GTS generally runs true to size. However, it's always recommended to try on the shoes or consult the brand's size chart to ensure the best fit for your foot shape and size.

What is the difference between the men's and women's versions of the Brooks Adrenaline GTS?

The men's and women's versions of the Adrenaline GTS are built on gender-specific lasts to accommodate the differences in foot shape between men and women. The women's version also features a slightly softer midsole and a narrower heel to cater to the unique needs of female runners.