NIKE Men's 621077 402 Mesh Rubber sole Flymesh upper offers ventilation and support where you need it most Molded foam wraps your midfoot and heel for lockdown Cushlon midsole for plush cushioning and impact protection Full-length Max Air unit for cushioning and a smooth transition Flex grooves align with the Max Air unit for superior flexibility. Waffle lugs provide durability and superb, multi-surface traction