Personalized 4th Birthday Rocket Toddler T-Shirt. Blast off into a happy fourth birthday with a red rocket, shooting stars, and astronaut celebrating the four year old's 4th birthday! 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.