Personalized 1st Birthday Gold Lettering 1 Year Old Newborn Layette. 1st Birthday Newborn Layette - White has this girl is one party celebration slogan in gold color lettering for baby's first 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