Personalized Engineer Shamrocks Infant Romper. Engineer text surrounded by an oval of shamrocks is a unique design for the Irish and the Irish at heart on birthdays, holidays and St. Patrick's Day. 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)