Personalized Ballerina 1st Birthday Women's V-Neck T-Shirt. Ballerina 1st birthday Women's V-Neck T-Shirt - 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. 5.0 oz., 100% pre-shrunk cotton Athletic Heather is 90/10 cotton/polyester 1x1 rib collar with mitered v-neck Shoulder-to-shoulder taping Ladies' fit