Personalized Santasaurus Rex Newborn Layette. Santasaurus Rex! A cute T-Rex dinosaur wearing a Santa hat and carrying a Christmas present. Funny X-mas gift! 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