Personalized Model Trains Steam Trains T-Shirt. 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. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.