Extra warmth when a jacket is too much. Keep your core warm and arms free for targeted protection without bulk. We love it for: cold weather running in the wind and rain WindStopTM shell: 85% nylon & 15% spandex Wind-resistant, lightweight & smooth PFC-free 80/10 durable water repellent finish 60g Eco^2syA(R) insulation: 65% recycled polyester & 35% S.CafeA(R) polyester rabbitDRY liner: 88% polyester & 12% spandex Breathability/Moisture Permeability (MP): 10K+ Tailored fit Mock neck Full zipper 2 front zip pockets fit keys or nutrition Toggles at side hems Reflective elements Machine wash cold, tumble dry low, don&';t bleach Designed in California, made abroad