The Nike FREE 5.0 running shoe features a one-piece mesh and synthetic leather upper that is breathable, supportive and chafe-free. Dynamic Fit construction wraps the forefoot for a glove-like fit. Dual-pull lacing system wraps around the foot and attaches to the midsole to supply lockdown fit and support. Full innersleeve is made of lightweight mesh to provide comfort and breathability. Durable, full-length Phylon midsole adds lightweight cushioning and comfort. Flex grooves along the length and width of the midsole enhance flexibility, allowing the foot to move easily in any direction. Solid rubber pods in the heel and outside of the forefoot are configured in an aggressive pattern to deliver added traction and durability. DiamondFLX traction pattern lends flexible, multidirectional grip. Wt. 6.0 oz.