Personalized 1st Christmas Ethnic Santa Claus Toddler Long Sleeve T-Shirt. Baby's 1st Christmas Toddler Long Sleeve Tee - Kelly Green cute holiday outfit with ethnic Santa Claus baby. 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.