Personalized Dinosaur 1st Birthday Newborn Layette. Happy birthday! A cute dinosaur wearing a birthday hat peeks around a 1. Cute gift for the one year old's 1st birthday! 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