Personalized Big Sister Toddler T-Shirt. A pink T-Rex dinosaur wearing a crown is the big sister! Cute gift for any big sis who knows she's the boss. 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.