Personalized Ballerina 1st Birthday Newborn Layette. Ballerina 1st birthday Newborn Layette - 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. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months