Personalized Pirate 4th Birthday Women's V-Neck T-Shirt. Pirate 4th birthday - Ahoy, matey! A happy pegleg pirate captain and his parrot first mate have found a treasure chest with a golden four. Cute gift for the four year 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