Boasting our best warmth-to-weight ratio, the REI Co-op men's Magma 30 sleeping bag packs small and light, thanks to water-resistant, premium 850-fill-power goose down insulation. FILL. 850-fill-power goose down (RDS certified and bluesign® approved). WEIGHT. Long - Left Zip: 1 lb. 6 oz. Regular - Left Zip: 1 lb. 3.8 oz. COMPRESSED VOLUME. Long - Left Zip: 3.1 liters. Regular - Left Zip: 2.6 liters. TEMPERATURE RATING (F). 30 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 supersoft feel
• Down is RDS (Responsible Down Standard) certified and bluesign® approved
• Trapezoidal footbox keeps feet comfy; a toe box baffle positions downward to provide warmth
• Variable baffle spacing locates and stabilizes the 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
• Contoured hood retains warmth while providing space for a low-profile pillow; 2 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