The gown is one size but made to grow with your cozy tiny human. Each set includes an adjustable knotted cap. This thoughtfully designed piece will quickly become a favorite for any new parent. It's soft, simple, stylish and oh so practical! Full body front snaps for easy and quick changes, nothing over the head! Elastic bottom with plenty of room for a knot making diaper changes a breeze. Signature MOONBEX fabric, breathable yet cozy body temperature regulating, perfect for new baby!