Personalized Twins 1st St Patricks Day Irish Newborn Layette. Twins first St Paddys Day Newborn Layette - Black outfit with Irish rainbow shamrocks and pot of gold. 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