100% Cotton Muslin Snap-On Short Romper As Pierre Cardin, we do our best to welcome your newborn babies in the healthiest and most comfortable way. Pierre Cardin baby rompers are made of 100% cotton. They do not contain any carcinogenic substances. Their snaps are produced in accordance with European health standards and do not cause any allergic reactions on your babies' beautiful and soft silky skin. Pierre Cardin baby rompers are made of soft and natural yarn to ensure that your babies are comfortable both while moving and sleeping.