Personalized Ninja In Training Toddler T-Shirt. Toddler T-Shirt - White with adorable baby Ninja says NINJA IN TRAINING. Perfect for your little warrior. Baby Ninja used on this item is licensed and copyright from Graphics Factory.com. Matching NINJA MASTER also available. 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.