Personalized My First Christmas Dinosaur Newborn Layette. My First Christmas - A cute little dinosaur broke out of its egg, wearing a Santa suit and holding a present. Cute gift for your little one's first Christmas. 100% combed ringspun cotton 5.8 ounce 1×1 baby rib sleeper. 3/8" flatlock binding at envelope neck and cuffs. Back sleeve flap to protect hands. Elastic opening at bottom. Infant: 0-3 Months