Personalized Got Chemistry White Text Infant Romper. Infant Romper - Black with "I've got chemistry" in rough white text are a humorous academic subject design with a double meaning. Fun gift to your charming chemist, teacher or student at back to school, birthdays, holidays 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)