Take control of every stride with the Brooks Glycerin Flex, built for runners who crave ultimate comfort and adaptability. Its nitrogen-infused DNA cushioning delivers plush landings and springy toe-offs, while the engineered knit upper moves seamlessly with your foot for a breathable, flexible fit. Lightweight and designed for smooth transitions, this shoe keeps you feeling fast, supported, and ready to go the distance. Design: Engineered flat knit upper delivers a breathable, flexible fit that moves naturally with your foot Smooth ride design with strategic flex grooves ensures effortless transitions from landing to toe-off Asymmetrical midfoot flex groove and podular forefoot flexibility provide targeted support and adaptability In-Shoe Comfort: DNA TUNED cushioning with nitrogen infusion offers plush landings and responsive toe-offs for an energized run Expertly tuned midsole delivers a balance of softness and propulsion to keep you moving with ease Durability & Traction: Outsole pattern designed for reliable grip and stability across varied surfaces Strategic placement of flex grooves enhances traction while maintaining flexibility Additional Details: Lightweight construction at just 9.1 oz for a fast, effortless feel 6 mm offset promotes a natural stride and smooth transitions