Thank you for viewing. I opened the package because I intended to use it. I peeled off a sticker that was on the sock pattern, which I received as a gift. There is some stickiness from the sticker. Although unused, this item has been stored at home. Please check the condition of the product and purchase it if you are not concerned. Cocoonist 5-finger socks, toe-opening socks Size: 23-25cm Not a cooling material. Toe socks, toe socks, room socks