Basico Womens Nylon Premium Liner Socks 3 Packs Imported 83% Nylon and 17% Spandex-Lightweight soft nylon Perfect Edge Liner,Stays hidden,Lightweight soft nylon 3 Packs (9-11 Socks Size/Women Shoe Size 5-9) Designed with non-skid silicone patches (Hill& Bottom) to prevent slipping inside of the shoe. biodegradable silicon patch to keep sock in place (Hill& Bottom)