The Periscope Pocket Tail Shirt is made from rinsed sump cloth, a heavyweight industrial cotton traditionally used by factory workers. Two large vertical pockets are stitched at the chest featuring top access to insert large tools and also slits at the sides for your hands or for smaller items. The shirt has a long back tail and narrow unstructured collar. Dyed with red ochre stripes throughout. Finished with olive wood buttons. Puckered at the seams for lived-in characteristic. Size 3 (medium/large) - Made in England - Orange Dyed - 100% cotton - Regular fit - Machine wash - Mode in last pic is 5'11", 155 lbs and wears size 3/medium. I'm 6'3", 180lbs and also wear the 3. Fit Tip Fits true to size. Fabric / Material - 100% cotton