For the athlete training for endurance, the Nike Lunar Sweet Victory+ training shoe provides exceptional cushioning, multidirectional flexibility and traction on a variety of surfaces. Nike Fuse upper with internal inner sleeve. Single-layer mesh and top layer PU film provide lightweight durability. Comfort collar materials in heel add enhanced fit. Nike Lunarlon cushioning. Exaggerated flex grooves offer multidirectional flexibility. Environmentally preferred rubber pods in heel. Wt. 8.4 oz.