There is no size notation, but I think it's around 25-27 cm. Measured from the heel to the big toe, it's about 26.5 cm. The beige ones are new and unused, but the white ones have been worn twice, washed, and stored at home. There are some pills, so please check the photos. Comfortable Gohemp socks With non-slip grip Listed as new and unused. Hemp, organic, socks, Gohemp