This is a knit cap from UNIQLO. The size is listed as one size on the product tag, but it feels small. I think it's a good size for kids. It has ear flaps, so it's warm. I've only used it a few times, so it's in good condition with no stains or scratches. Please understand that this is a used item. GAP UNIQLO GU ZARA H&M Snow mountain Snow Ski