Under Armour Boys Drive Basketball Crew Single Pair 49% Nylon/39% Polyester/10% 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