Personalized Santa T-Rex Toddler Long Sleeve T-Shirt. Santa T-Rex. A cute dinosaur delivers Christmas presents while wearing a Santa hat, a scarf, and a smile. Cute gift for anyone who loves dinosaurs and Christmas. 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.