Personalized 3rd Birthday Sailboat Women's V-Neck T-Shirt. 3rd birthday sailboat Women's V-Neck T-Shirt - Pink with number 3 on its sail makes a fun nautical themed party day gift for a little boy. 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