Nike Dri-FIT technology moves sweat away from your skin for quicker evaporation, helping you stay dry and comfortable. Adjustable strap lets you create a custom, comfortable fit. Low-profile ergonomic design enhances natural range of motion. 51% polyethylene/26% polyester/15% ethylene vinyl acetate/6% rubber/2% polyurethane Imported Nike Diamond Baseball Batter's Leg Guard (Left Handed Hitter), Grey, Size: