Material: 45% Nylon, 50% Cotton, 5% Spandex Made of high quality nylon, spandex and cotton fabric, which is durable, breathable and sweat absorbent. Thin and seamless socks are super comfortable to wear. No show socks with non-slip silicone to prevent slipping in shoes. Our women’s low cut socks are easy to match with most shoes. Keep your feet dry and cool all day. Elastic socks perfect for ballet shoes, pumps, high-heel shoe, sneakers, Flat shoe, Boat Shoes, Loafers, etc. Free size: Fits US women??s shoes 5-9. Four pairs a pack.