Personalized Little Engineer Infant Romper. Infant Romper - White with a cute little railroad engineer wearing overalls, cap and red bandana. Red text says LITTLE ENGINEER. Graphics by JW Illustrations. 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)