Men's Glycerin Flex SIZE:9 Explosive Energy Return – Dual

Explosive Energy Return – Dual forefoot Air Zoom units pair with a responsive ZoomX foam midsole

rugged Vibram® Megagrip rubber

and all-day mobility

Fit - Semi Fitted - Follows the shape of your body with some breathing room for unrestricted movement

The benefits of Merino wool work to help manage sweat

Men's Glycerin Flex SIZE:9 Explosive Energy Return – DualThe Brooks Glycerin Flex brings together plush cushioning and adaptive flexibility to help runners move with confidence. DNA Tuned cushioning uses a dual cell nitrogen infused design to create soft landings in the heel and responsive toe offs in the forefoot. The result is a smooth, efficient ride that feels connected from the moment your foot hits the ground. A new engineered flat knit upper adds breathable comfort while allowing natural foot motion.