80% Cotton Material: 80% Cotton, 12% Acrylic, 8% Polyester. Size: Bottom 8.6 inches, US 5-10. Calf 21-23 inches. The knee high socks with great elasticity won’t fall down easily. Color: Black, Dark gray, Coffee. Delicate twisted texture. The length of socks are so common. Not too thick or too thin, suitable for Spring, Autumn or warm Winter. Package Include: 3 pairs socks, set with simple colors.