With a breathable mesh upper and minimal cushioning, the Nike Zoom Elite 8 is lightweight and responsive for high-speed performance. Notched tongue combines with a seamless, single-layer inner sleeve and Dynamic Flywire technology for a sung, locked-down fit. Zoom Air unit in the forefoot and lightweight Phylon cushioning for a comfortable yet minimal ride. Blown rubber crash rails in the outsole add cushioning and traction. Environmentally preferred rubber in the heel for durability where you need it most. Wt. 10.2 oz.