Skin Socks are versatile sport socks that are designed to protect the feet. Made up of a nylon and spandex blend, Skin Socks reduce irritation against the foot, effectively preventing blisters and chafing. The lightweight Skin Socks conform to the foot during use, creating a thin and breathable layer of protection. The Skin Socks are great for swimming with fins, running, biking, and other activities. Available in Small (Men’s shoe sizes 2-5.5), Medium (Men’s shoe sizes 6-9.5) and Large (Men’s shoe sizes 10-14).