Harley-Davidson Wolverine Mens Xtreme Performance Wool Rider Socks (Gray, Large) Wool Blend Men's Xtreme Wool Performance Rider Socks Size Large: Fits Men's shoe size 9-13 Made of 40% Merino Xtreme Wool, 40% polyester, 17% nylon and 3% spandex Naturally moisture wicking premium merino xtreme wool Made in the U.S.A