Harley-Davidson Wolverine Men's Performance CoolMax Socks, Gray D99085170-020 Polyester Blend Men's Performance CoolMax Low Cut Riding Sock Size Large: Fits Men's shoe size 9-13 Made of 40% Coolmax Polyester, 40% Cotton, 15% Nylon, 3% Spandex, 2% NanoGlide Coolmax moisture wicking for cooler, drier comfort NanoGlide technology provides added durability moisture wicking and friction reduction in key areas