Personalized 4th Birthday Baseball Boys 4 year Old Toddler Long Sleeve T-Shirt. 4th Birthday Toddler Long Sleeve Tee - White has baseball sports ball logo with being four is a ball slogan quote for kids turning 4 years old. 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.