Thank you for viewing! Please review the images and details along with my profile before considering a purchase *ˊᵕˋ* These are tabi socks for Japanese traditional wear. The material isn't specified, so it's unknown, but the surface is smooth, and I think it might be polyester. The inside and sole are probably cotton. I usually wear sneakers in sizes 23.5-24cm. For reference. They have been stored for a long time after use. There are small, faint stains here and there. Please understand that these are home-stored, used items. I have pets (dogs) and am a smoker (under the range hood).