This is a romper from Akachan no Shiro (Baby's Castle). It's 100% cotton and made in Japan. It has an overall-style design, and the buttons at the feet make diaper changes convenient. The fabric is thick, so I think your baby can stay comfortable even in winter. My child wore it for one season, so there are some stains on the white parts. Please understand that this is a used item. Type: Coverall Sleeve Length: Long Sleeve Design: Solid Design: Border/Stripes