New In Original Package. Rest easy under the stars in extreme conditions with Marmot’s -20°F COL left-hand long down sleeping bag, made from windproof and waterproof breathable. Fabric with toasty 800+. Fill power goose down insulation, cross-baffle construction to eliminate cold spots, and a down-filled draft tube and zipper guard to maximize comfort and prevent heat loss. Waterproof breathable and windproof Pertex® Shield shell. 800+ fill power goose down insulation. 30 denier Pertex® Microlight lining. Cross-baffle construction helps prevent down shifting and cold spots. 11-baffle and wrap-around footbox maximizes warmth. Draft tube and collar with down fill for comfort. Zipper guard limits heat loss. Hidden draft tube pocket. Comfort rated to -20°F. Insulation material: Goose down. Insulation fill power: 800+. Shell material: Pertex® Shield waterproof ripstop nylon. Lining material: Pertex® Microlight nylon.