Personalized Book Monster Girl Infant Romper. Infant Romper - White with funny green girl monster wearing glasses, reading a book says BOOK MONSTER. Cute back to school gift for book worms, book nerds and book lovers. 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)