Personalized Twins 1st St Patricks Day Infant Romper. Adorable twin baby boys or girls in green Irish hats with our 1st St Patricks Day quote on a Infant Romper - White holiday outfit. Meet your new favorite outfit! Keep dressing simple with this one piece, lap shoulder t-romper. Super soft and perfect for baby's sensitive skin. 5.5 oz. 100% combed ringspun cotton premium jersey (CVC Colors are 60/40; Heather is 90/10 combed ringspun cotton/polyester)