Personalized Stays In Kindergarten Toddler Long Sleeve T-Shirt. Toddler Long Sleeve Tee - Black for back to school with colorful, funny saying and hand prints. WHAT HAPPENS IN KINDERGARTEN STAYS IN KINDERGARTEN. Perfect for kids and teachers! A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.