Built to provide lightweight warmth, breathability and coverage in the elements, our ACG "Sierra Light" jacket is ready to be put to the test. With light insulation and a soft knit liner, it helps keep you warm while allowing excess body heat to escape before you start to sweat. Stretch panels under both arms increase the mobility for less restriction during activity. Plus, it's made with a durable, water-repellent ripstop fabric to help withstand your wet-weather adventures.