Harley-Davidson Mens Mid Calf Performance Warm Ultimate Wool Riding Socks Black Sock - L - Mens 9-13 Acrylic Blend Men's Mid-Calf Performance Sock Size Large: Fits Men's shoe size 9-13 Made of 60% acrylic, 20% merino wool, 17% nylon and 3% spandex Black Made in the U.S.A