Personalized Blast Off 1st Birthday Newborn Layette. BLAST OFF IT'S MY 1ST BIRTHDAY Newborn Layette - Black with cute astronaut and stars. 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