Personalized 4th Birthday Dinosaur Party Toddler Long Sleeve T-Shirt. Cute childs 4th birthday Toddler Long Sleeve Tee - White with colorful tribal dinosaur and give a Rawr this kid is 4 quote. 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.