This is a Petit Bateau three-piece set. I've worn it a few times, but it's in very good condition. Made with safe organic cotton, it's a front-opening type that's easy to change. This is a three-piece set featuring the brand's signature mini-marinière striped set and plain-colored bodysuits. It uses 1x1 rib knit material, which feels so comfortable it's called the second skin. This set is easy to change and comfortable to wear. It's 12m/74cm, but since it's slim, I think it can be worn from an earlier age. The underwear has never been worn, but it has been stored at home, so please consider this if you are not concerned. Thank you for looking.