The birthday girl is going to celebrate in style this year. I am 3 years old Birthday with Mermaid Toddler T-Shirt, a perfect gift for your creative, mermaid-loving daughter or granddaughter on her special day. 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. Toddler T-Shirt.