Callaway Le Coq Ribbed Design Socks Golf Socks The size isn't certain, but I think it's 24cm-25cm. I've measured it, but please understand there may be some error as I am not a professional. I've only worn them a few times, so there are no noticeable stains, but I'll sell them to someone who understands they are used. Please refrain from purchasing if you are sensitive to this. They are golf socks, but how about them for other occasions, such as children's events, for those who don't usually wear white socks? Thank you. Instant purchase is welcome!!