Personalized Chemistry Teaching Chick Text Infant Romper. Chemistry teaching chick with a chick holding a book about everything you need to know about chemistry is a fun gift design for back to school and graduation. Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)