Ecosox Viscose from Bamboo Women's Active Sport Low Cut Socks 80% Viscose from Bamboo, 10% Polyester, 5% Nylon, 3% Spandex, 2% Rubber SIZE: Medium - Women's Shoe Sizes 4-10.5, Men's Shoe Sizes 3-9 (Sock Size 9-11) Advanced Moisture Wicking to Keep Feet Dry Arch Support & Cushioned Heal & Toe to Help Fight Foot Fatigue Thermo-Regulating to Help Regulate Skin Temperature Helps to Prevent Odors & Fights the Formation of Blisters You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!