The Brooks Adrenaline GTS 13 running shoe is built for the moderate overpronator who requires a combination of cushioning and enhanced stability. Mesh upper allows for a highly breathable environment, while synthetic leather overlays provide lightweight, durable support. Element technology offers moisture-managing properties, for a healthier environment. Its microfiber construction is sturdy, and also supplies light weather protection. Lightly padded tongue and collar provide added comfort. Element sockliner offers a great step in feel and helps keep you cooler and drier. BioMoGo midsole delivers long-lasting cushioning and is environmentally friendly. A natural, non-toxic ingredient was added to the original MoGo compound to encourage anaerobic microbes to feast away once the shoes are in the landfill, making it biodegradable. Brooks DNA cushioning compound delivers a personalized ride for runners of all sizes, foot shapes, and athletic ability. Designed to work with BioMoGo, it responds to every footfall, dispersing impact and providing the necessary protection through pace changes. Tri-density Progressive Diagonal Rollbar® (PDRB) is designed to allow for progressive pronation control, as well as to enhance transition from the midstance through the propulsion phase. DRB® Accel shank-like thermoplastic device promotes medial support for a smoother ride. Forefoot stable pod construction helps set the foot into an efficient, neutral position throughout the gait cycle, promoting maximum stability. HPR Plus™ rubber outsole compound delivers ultimate abrasion resistance for long-lasting wear. Blown rubber forefoot offers lightweight cushioning and supreme durability. Wt. 11.3 oz.