Sea to Summit Alpine ApII Sleeping Bag - $324.83

Designed for high altitude overnights, the Sea to Summit Alpine ApII down sleeping bag keeps your nights warm when trekking the Himalayas or touring the Alps hut to hut. High loft, premium 850-fill-power European duck down offers superb warmth with minimal weight; Ultra-Dry Down(TM) water-repellent treatment protects down from moisture. Ultra-Dry Down is a water-repellent polymer treatment applied to the 850-fill down; Ultra-Dry Down retains 60% more loft and absorbs 30% less moisture than untreated down. With a European Norm (EN) lower-limit rating of 5degF, the ApII bag will help keep you warm in all seasons, including winter. Shell fabric is constructed of a 20-denier ripstop fabric treated with a Durable Water Repellent and a non-woven silicone encapsulated fabric. Innovative shell manages condensation, moving moisture vapor outward through down and siliconized barrier; shell repels water and protects the loft of the bag. Lining is a breathable, durable 20-denier polyester fabric with a soft touch. Contoured mummy shape is cut with a fitted hood, broad shoulders and large chest (to accommodate layering of clothes); generous room around knees ensures comfort when turning. Upper side of bag is differentially cut so that the inner layer is smaller than the outer layer; this creates a consistent thickness of insulation and helps prevent cold spots. Lower side is cut in reverse so that the inner layer is larger than the outer layer; this allows down to loft up, filling spaces around body in warmth. Oversize draft tube backing the 2-way zipper keeps the warmth in and the cold out; zipper is backed by stiff, antisnag tape for smooth operation. Anatomically tapered foot box allows feet to rest naturally; it also preserves loft and allows down to drape close to feet for warmth. Oversize collar drapes comfortably over neck and shoulders, sealing out drafts; dual elastic adjusters. - $324.83