Part of The North Face Summit Series the Summit Breithorn Jacket is all about the down. The envy of other downs this down features 800 fill power for lightweight warmth and excellent packability. If that's not enough it's also been treated to maintain its loft and insulating properties when wet--and also meets the Responsible Down Standard certification for ethical treatment of waterfowl. Made for mountaineering and ice climbing this premium puffy jacket is a mid-layer that's built to ace nature's toughest tests.