Personalized 3rd Birthday Princess I'm Three Toddler T-Shirt. 3rd Birthday gift for your little girl who will look so sweet wearing a cute The Princess Is Three crown Toddler T-Shirt - Vintage Smoke gift that is perfect for her special third birthday celebration party. 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.