KEEN WEAR MASKS Contents: 2 masks Size: XS/S Color: Black Material: Body: 100% Cotton KEEN is an American outdoor footwear brand that is currently popular for its sandals and shoes. This is a cute mask with the KEEN logo as a single point on the mask body ☺︎ The size is XS/S, but since it is an American brand, I don't think it will be small for Japanese people. This was a special gift from the staff when I made a purchase at a KEEN authorized store. I have kept it at home because I have not had the opportunity to use it. There are some scratches and small marks on the box due to storage, but the contents have never been opened. Please refrain from purchasing if you are nervous about home storage. Returns are not accepted.