Personalized So Cute Birthday Newborn Layette. Cute birthday Newborn Layette - White with colorful sprinkles and I'M SO CUTE IT MUST BE MY BIRTHDAY saying. For the birthday boy or girl. 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