Personalized Chemistry Bubbles Infant Romper. Chemistry in rough blue text surrounded by blue bubbles is a fun design for chemists,students and teachers of chemistry at birthdays, holidays, graduation and back to school. 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)