Personalized Twins Our 1st Christmas Reindeer Toddler Long Sleeve T-Shirt. Christmas holiday reindeer twins with it's our 1st Christmas quote on a Toddler Long Sleeve Tee - White. 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.