Personalized It's My Birthday Cupcake Infant Romper. It's my birthday! A cool cupcake wearing sunglasses is throwing a big birthday party just for you. Balloons, party hats, confetti, and cupcakes! 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)