This long-sleeve pocket Henley T-shirt is made from heavy weight ((10.5 oz/350 GSM)) flat rib knit construction. Nano-Technology fabric treatment help to resists spills and releases stains technology that keeps stains from soaking in, and allows them to easily come clean, while retaining a fabric's natural softness. So you can look great and stay comfortable, all day long. Size: This 3-button Henley T-shirt is a larger cut and has plenty of room for movement. For example, if you normally wear a L-size, then a Medium size might fit fine as well. Compare to what you own to be sure of fit. S (38-40"), M (41-43"), L (45-47"), XL (49-51"), 2XL (53-55"), 3XL (57-59"), 4XL (61-63").