Under Armour Boys Football Crew Single Pair 57% Nylon/32% Polyester/9% Cotton/2% Spandex Imported Strategic cushion reduces bulk, delivers flexibility and breathability High-density selective cushion deliver responsive support and impact absorption Ergonomic contour Technology delivers true left-right anatomical fit HeatGear fabric wicks sweat away from your skin to keep you cool, dry, and light ArmourBlock Technology helps prevent growth of odor causing bacteria in the sock