Personalized Sister of the Groom blue wedding Newborn Layette. Sister of the Groom blue Wedding Butterfly Newborn Layette - White gift for your bridal party. Lovely blue butterfly marriage logo. 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