Product Description The NZ 20 Mummy Ultralight Sleeping Bag is designed for high-altitude expeditions, backpacking, and camping trips, offering exceptional warmth, comfort, and packability. Built with premium materials and innovative features, it’s your go-to sleeping bag for mild to cold weather adventures. Key Features Premium Insulation & Materials: 850+ fill white duck down for superior warmth-to-weight performance. Built with water-resistant 10D ripstop nylon and certified to the RDS standard. Advanced Warmth & Comfort: 18°F (-8°C) comfort limit with hood, collar adjustments, and baffles to block drafts. Includes an internal pocket for essentials. Lightweight & Packable: Compresses to about 12 x 6 inches—similar to a 32-oz bottle—using the included compression sack to conserve pack space. Designed for Adventure: Ideal for cold-weather camping, mountaineering, and backpacking. Durable, lightweight, and offers higher fill power than many competitors for exceptional value. Included Accessories Compression carrying bag made of ripstop nylon. Mesh storage sack for long-term storage. Technical Specs Best Use Backpacking/Mountaineering Temperature Rating (F/C) Comfort: 28 F/ -2 CComfort Limit: 18 F/ -8 CExtreme: 12 F/ -11 C Weight Short: 1 lb. 8 oz. (700 g)Regular: 1 lb. 13 oz. (800 g)Long: 2 lbs. (900 g) Zipper Location Right Material 10D taffeta nylon Insulation Type White duck down Fill 850+ fill power (RDS certified)Short: 400 g of down fillRegular: 470 g of down fillLong: 560 g of down fill Shape Mummy Fit (User Recommended Height) Short: Fits up to 5' 6" (168 cm)Regular: Fits up to 6' (183 cm)Long: Fits up to 6' 6" (198 cm) Dimensions (L x shoulder/hip width) Short: 73 x 31/18 inchesRegular: 80 x 31/20 inchesLong: 87 x 31/20 inches Gender Unisex