Personalized Granddad Superhero Toddler T-Shirt. Here's a cool, comic book t-shirt for granddad! He is a superhero for sure. Perfect gift for Father's Day, a birthday, or any occasion. 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.