Our Long-Sleeved Pima Cotton Rugby Shirt, in American Pima Cotton with a hint of stretch, features a flat gabardine collar, a hidden button-down placket with genuine mother-of-pearl buttons, the absence of shoulder seams and a hanging loop at the back. (Design side note: The way we see it American Pima Cotton is the "cashmere of cotton", superior to other cottons in 3 ways: Strength - you can machine wash it, throw it in the dryer, or use your favorite laundry detergent. Softness - this comes from its extra-long, luxurious fibres and the way those fibres react with moisture (not only on the first encounter, but over time). Colour – as it absorbs dye better than the fibres found in other cottons. you’ll notice a substantial difference in the brilliance and integrity of the fabric.)