The REI Magma 30F Down Sleeping Bag is a women's regular size sleeping bag designed for camping adventures. This ultralight sleeping bag weighs only 22 oz, making it easy to carry on outdoor trips. With a temperature rating of 30°F and 850 FP of down insulation, it is suitable for cooler weather conditions. Its mummy shape and medium size make it efficient for one-person use, while the 15-denier ripstop nylon lining adds durability. The Pertex 15-denier ripstop nylon shell ensures durability, and the zippered right location for easy access. Machine wash and hang to dry for convenient care. REI Magma 30Degree Mummy Sleeping Bag. The fill is goose down at 850 power. Not stored compressed and comes with the storage and compression bag. Packs down small and light for backpacking. Never used, in excellent condition, retails at $350.00.