The Patagonia Women's Sun Stretch Long Sleeve Shirt designed for warm weather fishing, is made from a stretchy and ultralight nylon polyester fabric blend that offers plenty of freedom to move and breathe. It provides 30-UPF sun protection and full-arm coverage through the heat of the day, and the comfortable, relaxed fit works beautifully over a bathing suit or under outer layers when evening temperatures drop. Snap-down collar points prevent chin chafe. Two button-closure patch pockets on the chest; a hidden zippered security pocket on the left chest holds small essentials. A convenient front interior sunglass wipe panel keeps your field of vision clear and the curved hem falls to the hips.