Under Armour Men's Charged Cotton No-Show Socks (Pack of 6) 79% Cotton, 17% Nylon, 3% Polyester, 1% Spandex Imported Versatile no show socks Charged Cotton has the comfort of cotton, but dries much faster Anti-odor technology prevents the growth of odor-causing microbe Strategic Cushion reduces bulk, delivers flexibility & breathability Dynamic Arch Support helps reduce foot fatigue