I think I bought this at Akachan Honpo. It's made of a fluffy material like a blanket, and it feels good. The fluffy part is clean with no pilling, but there is some pilling on the piping. It's a 2-way design that turns into a romper when you fasten the crotch buttons, so the hem doesn't ride up, which was nice. Please refer to photo 2 for the size.