The skin-facing surface is 100% cotton for a gentle feel. The quilted padding traps warm air to maintain warmth. I bought this for my child, but they outgrew it before they could wear it. * Although it is new and unused, I would like to sell it to someone who understands that it has been stored at home. Please note that there may be some creases from storage in the bag. There is also some peeling on the price tag sticker. * Please check any areas you cannot judge from the photos or any concerns you may have beforehand. * I also have other baby clothes for sale, so please take a look if you'd like. If you purchase multiple items, even if they are in new bags, I will open them and combine them for shipping. → #tayutaushopbaby - Brand: UNIQLO - Color: Pink - Size: 60 Type: Coverall Sleeve Length: Long Sleeve Design: Animals