Heavy down insulated parkas emerged in our winter weather arsenal when Eddie Bauer outfitted the first American Summit of Everest in '63, but the value of down as a midlayer is just now reaching our consciousness. A long overdue concept, the ultralight and highly efficient Men's Patagonia Down Sweater Vest features compressible and packable 800-fill goose down insulation that warms the core to its zenith. Created for minimalists and climbers who look to lighten their load with the ultimate in efficient layering, the Down Sweater Vest is designed in superlight, windproof and highly water resistant polyester that provides premium tear-strength. For optimal functionality the vest shell is fashioned in a quilted construction to stabilize the down and prevent cold spots. Two zippered handwarmer pockets store small items and an interior zip pocket of mesh sports a carabiner clip-in loop and doubles as a stuff sack. Elastic binding at the vest armholes and a drawcord hem help seal out drafts when hunkering down for a long night's bivy. Conceived for the mountain, but equally at home in urban confines, the Patagonia Men's Down Sweater Vest brings mind boggling cozy comfort to the forefront.