Boasting lightweight construction, a fitted silhouette and premium, water-resistant 850-fill-power goose down, the REI Co-op men's Magma 10 sleeping bag delivers an excellent warmth-to-weight ratio. FILL. 850-fill goose down. WEIGHT. Long: 2 lbs. Regular: 1 lb. 14 oz. COMPRESSED VOLUME. Long: 7.9 liters. Regular: 7.3 liters. TEMPERATURE RATING (F). 10 degrees (F)

• Designed with generous knee and foot space and a fitted silhouette that delivers the most efficient warmth-to-weight ratio in the REI Co-op brand sleeping bag line
• Downproof Pertex® shell, water-resistant 850-fill-power goose down and supple 15-denier lining combine to provide lasting coziness and a super-soft feel
• Trapezoidal foot box keeps feet comfy; a toe box baffle positions downward to provide warmth
• Variable baffle spacing locates and stabilizes down fill, delivering high thermal efficiency and reducing weight
• New zipper cover and internal antisnag strip combine for easy zipping; a hybrid zipper path provides easy access along shoulders and torso
• A contoured hood retains warmth while providing space for a low-profile pillow; two different hood drawcords allow internal adjustment to avoid heat loss
• Insulated yoke fills neck and shoulder gap to prevent heat loss
• Includes a stuff sack for packing and a roomy mesh sack for breathable storage
• 2017 Editors' Choice Award winner from Backpacker Magazine