DetailsMountain Khakis Men's Size Chart Mountain Khakis designed this shirt with one thing in mind: spending all day on the water. Whether you're fishing in the creek or taking the boat into open water, this shirt is packed with features to keep you cool, comfortable, and protected from the sun. The lightweight poly fabric stays breathable and has just enough stretch to keep you mobile. Back panel venting increases airflow around your core and roll-tab sleeves let you customize your sleeve length. Protect your neck with a flip-n-snap collar, and clean your shades or phone screen with the built-in chamois cloth.