Personalized Pirate 4th Birthday Boys Party Toddler T-Shirt. 4th Birthday Toddler T-Shirt - Turquoise has striped number four wearing a pirate hat with This little pirate is 4 quote for a little boy turning 4 years old. A toddler-soft cotton tee in look-at-me, big kid colors. 4.5 oz., 100% combed ringspun cotton. White is sewn with 100% cotton thread. Topstitched rib crew neck. Double-needle stitched sleeves and bottom hem. Shoulder-to-shoulder taping.