☆ The size is 18cm. I mistakenly bought it thinking it was one size and free size. The fabric is soft and has a good feel. ☆ Rib-knit ankle socks ☆ Perfect for sneakers. - Color: Black, White, Gray, Beige - Size: 18cm/7.09in (foot length) - Material: Polyester Rib-knit - Style: Ankle socks - Design: Easy to match with sneakers Thank you for looking.