The Aconcagua Parka is named after the highest peak in the Western Hemisphere. And things get a little cold up there. Keep out the wind and keep in the warmth with the Aconcagua Parka. Thanks to WindWall™ fabric and a 50/50 blend of 600-fill recycled down and recycled polyester, you'll enjoy just-right warmth in a jacket that's equally comfortable cruising the city as camping and hiking mountain trails.