Personalized Ballerina 1st Birthday Infant Romper. Ballerina 1st birthday Infant Romper - White with a pretty pink tutu on a hanger and stars says THIS BALLERINA IS ONE. Perfect for futures ballerinas and ballerina theme birthday parties. 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)