Personalized Choo Choo Little Brother Toddler T-Shirt. LITTLE BROTHER Toddler T-Shirt - Natural with colorful text choo choo train on it's tracks. 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.