The North Face Beeline 900 30-Degree Down Sleeping Bag is a lightweight sleeping bag designed to keep you warm on fast-paced cool-weather expeditions. The North Face uses the lightest, highest quality, most compressible goose down available. This all-natural, 850-fill power down provides excellent warmth without the weight or bulk of most bagsthe regular size Beeline weighs in at just over a pound. The 100 nylon HelioLite ripstop shell is soft, easily compressed, and contributes to this sleeping bags overall light weight. As further testament to The North Faces obsession with creating the lightest cool-weather bag possible, they used a heat transfer logo instead of embroidery to save thread weight.