Personalized Twins 1st Christmas Bird Toddler T-Shirt. 1st Christmas twin boys or girls Toddler T-Shirt - White with holiday birds is also perfect for a couple celebrating their first Christmas together. 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.