Goldtoe Mens 4 Pack Premium Fashion Dress Socks First pair/Second pair/Third pair: 68% Rayon made from bamboo, 15% polyester, 15% nylon, 2% Spandex / Fourth pair: 64% Rayon made from bamboo, 18% polyester, 16% nylon, 2% Spandex 4 pair of socks Soft rayon Antimicrobial Moisture control