The Mountain Hardwear Phantom 0F/-18C Sleeping Bag is an ultralight, high performance down-filled sleeping bag for cold temperatures. With an ample amount of ultralight 850 fill goose down, this bag is extremely warm for how light and compressible it is. With an extremely lightweight 10D face fabric and an included compression sack, this bag stuffs down to take up little pack space, saving precious space and weight for that industrial size trail mix. From the anti-snag double zipper to the down filled draft collar, it has all the bells and whistles that you’d want for a cozy night’s sleep in the mountains. Weighing in at under 3 pounds, it is great for alpine excursions, long backpacking trips, or backcountry cold weather camping.