Personalized Cutest Big Sis To Be Newborn Layette. Cute future big sister Newborn Layette - White with bold, colorful text and hearts says Cutest Big Sister To Be. 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