This is a HAKKA sleeper. It has snap buttons on the top, bottom, left, and right sides, and the inside is boa fleece. It's recommended as a substitute for a comforter to prevent you from getting cold while sleeping. I've worn it a few times, but there are no noticeable stains or pilling. This is a used item, and it has been stored at home, so please understand this before purchasing. It will be shipped in a compression bag. There is a possibility of changing the shipping method between Rakuraku Mercari Bin and Yuuyu Mercari Bin. Thank you for your understanding. Thank you for looking.