This style is constructed from an innovative poly-blend fabric that features a moisture-wicking surface, four-way stretch and easy-care to keep you cool and dry all day long. An exceptional gram weight in the fabric prevents torque during activity. 92% polyester / 8% spandex. Classic fit. Four-way stretch, moisture wicking, odor control, quick-dry, easy-care. Sean self-fabric collar, three-button placket. UPF 50+ Sun protection. Machine wash cold with like colors; tumble dry low. Do not iron. Do not dry clean.