Personalized What if we have fun Infant Romper. The Whatif Monster realizes that trying new things can be fun. What if we have fun Infant Romper - White, from "Jonathan James and the Whatif Monster" by Michelle Nelson-Schmidt. 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)