Wigwam Ironman Thunder Pro Quarter Sock Acrylic,Lyocell,Nylon,Polyester,Spandex,Tencel Imported Quarter length, Pro Series keeps feet blister free, FreshGuard keeps socks fresh, X2O Acrylic fights off odor Sport sock, Cushioned sole, Heel tab prevents sock from slipping, Breathable mesh instep Dri-release dries super quick Foot hugging fit Moisture control system (repels moisture), Seamless toe closure, 51% Dri-release, 28% Nylon, 19% X2O Acrylic, 2% Stretch Polyester