Personalized 3rd Birthday Train Outfit Toddler T-Shirt. 3rd Birthday choo choo train Toddler T-Shirt - Lavender boys clothes party or photo outfit has colorful train with red engine and number 3. 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.