Personalized Race Car 4th Birthday Toddler Long Sleeve T-Shirt. Cute Race Car with the number 4 on it for your little boy's 4th Birthday is fun and colorful and comes on a party Toddler Long Sleeve Tee - Pink gift. art c. Ne' Metzger 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.