Under Armour Men's Charged Cotton Crew Socks 2.0 - Black, (Pack of 6) 79% Cotton/17% Nylon/3% Polyester/1% Spandex Imported Athletic crew 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