Personalized Whatif Monster Face Infant Romper. The Whatif Monster's anxious frown has suddenly been turned upside down with Whatif Monster Face Infant Romper - Mint. This green furry guy is the anxious creature who slowly learns he can't live his life based on "what ifs," from the book "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)