Personalized I'm Two Comic Book Toddler T-Shirt. Pow! Cool! Ka-Boom! I'm Two! Cool comic book style birthday gift for any two year old superhero's 2nd 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.