Personalized Model Trains Steam Trains Infant Romper. Ask me about trains, actually you don't have to ask I'll just start talking about them any time funny joke for a model train or steam train fan. 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)