When comfort and cooling are crucial, reach for the Marmot Women's Short-Sleeve Essential Shirt. This scoop-neck top wicks away moisture, dries in a flash, and keeps your torso bathed in fresh air thanks to the polyester mesh panels. Flatlock seam construction minimizes chafing whether you're hiking, climbing or chasing your four-legged escape artist. UPF 25 sun protection gives your core a little extra immunity from harmful solar radiation. In case you find yourself running past daylight hours, the built-in reflectivity will help you remain visible to drivers on the road.