Gold Toe Mens 4-Pair Fashion Dress Socks 6-12.5 Navy/Brown/Black Soft rayon Antimicrobial Moisture control Sock size 10-13; Fits shoe size 6-12.5 68% rayon made from bamboo, 15% polyester, 15% nylon, 2% spandex - OR - 64% rayon made from bamboo, 18% polyester, 16% nylon, 2% spandex