Personalized Dino Egg 1st Birthday Infant Romper. A baby dinosaur pops out of his egg wearing his first birthday hat. Happy birthday to the one year old! 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)