The North Face: Men's Summit Jacket - Ideal for serious mountaineering and winter trekking, The North Face Summit Jacket features exceptionally warm 800-fill goose down and PrimaLoft® One insulation for complete comfort on the coldest pitches. The North Face designed this insulated climbing outerwear with a welded baffle design that eliminates down shift. Great for extreme cold and serious mountaineering, The North Face Summit Jacket offers high quality 800-fill goose down and PrimaLoft® One insulation for amazing thermal performance.