The pink one is size M and made of a material suitable for year-round use. The bear one is size S and made of a soft, mochi-like material. This one has openings for the hands. Both were purchased new online and used for one child, but the child grew quickly, so they were only used for about a month...( ；∀；) There are no noticeable stains, but please check the details in the photos. No pets or smokers.