Personalized 4th Birthday Fourth of July Holiday Cupcake Toddler T-Shirt. Cute red white and blue birthday cupcake with number 4 for a 4th birthday comes on a Toddler T-Shirt - White 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.