Under Armour Men's Charged Cotton Low-Cut Socks 79% Cotton, 17% Nylon, 3% Polyester, 1% Spandex Imported Athletic low-cut 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