The Big Agnes Lost Ranger 15 Degree Sleeping Bag is a down bag for sleeping in the backcountry. When the temps get down to 15°F at night, you gotta bring along a bag that can handle it. The 650 fill treated with DownTek™ resists moisture while also delivering heat. When you're not snoozing away in your tent, the rectangular bag packs down in to an 8"x17.5" stuff sack (size regular) so you can jam it into your pack and be on your way to the next camp.
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