Down sleeping bags have become much more popular with weight focused mountain hunters since the advent of water resistant down. Q Shield treated down repels water and keeps you safe and drive even in wet conditions. The Phantom 0 utilizes the weight savings, superior compressibility and excellent heat to weight ratio of premium 800 fill down and offers the protection of Q Shield. Looking for the best way to shave pounds off your pack? Look no further than the Phantom 0. Expertly designed for maximum heat retention utilizes an insulated draft tube, an ergonomic neck collar and a down filled face gasket to seal in your valuable body heat. The Phantom 0 is a cold weather hunting machine, we recommend this bag for goat and late season sheep hunts.