Fill: 1,100g of goose down, 90/10. Fill power 650 Outside shell: Pertex Quantum Inside lining: 310T Polymicro FEATURESTotally dedicated to expeditionsSide zip with inside draught-excluder flapShoulder collarPreformed hood with dual drawcordInside pocketKEY POINTSSleeping bag for at-altitude and extremely cold conditions. Wide cut to let you sleep clothed and put thermos and boot inners in bag. ...