Personalized 3rd Birthday Polka Dot 3 Year Old Women's V-Neck T-Shirt. Happy 3rd birthday design has navy and white number 3 on a Women's V-Neck T-Shirt - Aqua for girls turning three years old 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