78%Cotton, 12%Spandex, 8% Polyester and 2% Rubber. Size: Sock Size:9-11/ Shoe Size 6-9 It is comfortable, lightweight, Perfect for everyday wear, Soft and gentle on your skin. Classic solid color designs, the retro premium cotton crew socks is best choice for your daily wearing. Great elasticity and stay up-compressed top holds the sock securely on the calf, no matter how active you are. It stays well and feels comfortable for all day long.