Personalized 1st Birthday Baseball Boys First Toddler Long Sleeve T-Shirt. Cute baseball themed baby's 1st birthday Toddler Long Sleeve Tee - Charcoal outfit 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.