Personalized Big Brothersaurus with Cute Sibling Dinosaurs Toddler T-Shirt. Big Brothersaurus! A cute little dinosaur is protected by his Big Brothersaurus. Fun Toddler T-Shirt - Natural for brother! 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.