Under Armour Men's ColdGear Tundraflage Cushion 0Ver-The-Calf Socks (1 Pair) 84% Acrylic, 8% Polyester, 5% Spandex, 3% Nylon Imported ArmourDry wicks moisture, accelerates evaporation Embedded Arch Support helps reduce foot fatigue ArmourBlock helps prevent growth of odor-causing bacteria in the sock