Personalized Reindeer Baby's 1st Christmas Toddler Long Sleeve T-Shirt. 1st Christmas Toddler Long Sleeve Tee - Black with a little reindeer holding a giant candy cane for the number 1. He says IT'S MY 1ST 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.