Personalized 1st Birthday Alligator Jungle Newborn Layette. This fun green alligator 1st Birthday Newborn Layette - Black with I'm One slogan in an orange speech bubble. 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