Under Armour Women's ColdGear Ice Cushion Over-the-Calf Socks (1 Pair) 84% Acrylic, 8% Spandex, 5% Polyester, 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