Personalized Ahoy Matey 3rd Birthday Long Sleeve T-Shirt. 3rd birthday Long Sleeve T-Shirt - White with a life preserver and a big number 3 says AHOY MATEY! WHEE I'M THREE!. Perfect for your little skipper's third birthday. Pre-shrunk 100% cotton 6.1 ounce long sleeve t-shirt. Double-needle stitched neckline and sleeves. Quarter turned. Shoulder-to-shoulder taping. Adult: S, M, L, XL, 2XL, 3XL