The Nike LunarElement training shoe features an upper with an internal pro wrap inner sleeve for strategic support and a breathable mesh upper. Lunarlon cushioning in the midsole features a softer core and a firmer carrier which makes for a lightweight, springy response. Full-length, multidirectional flex grooves offer optimal movement and flexibility. Heel and forefoot rubber pods give maximum control on every surface and multidirectional traction. Wt. 6.6 oz.