Personalized Cute Turtle 4th Birthday Toddler T-Shirt. 4th birthday I'm 4 Toddler T-Shirt - White and Black with happy smiling turtle with bow tie and party hat holding balloons and big red polka dot number four on his tummy. 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.