CAcB sox Women's Ultra Thin Toeless Low Cut Fake Socks w/Large Silicone Heel Grip 80% nylon 80%Nylon 20%Spandex. Rich in Elastic. Seamless edge, Ice silk & Single Layer Sock Provides a Second Skin Feel SILICONE HEEL:Large silicon grip on heel to prevent slipping,stay on your feet. Super low cut socks and low profile socks to wear with your favorite shoes for the 'no show socks' look Fits U.S. shoe sizes 5-9; 3 colors available: nude, black,coffee