Intended for cold weather camping and backpacking, the Big Agnes Yock 0 Degree Sleeping Bag is made to keep you warm and comfortable in all but negative temperatures. It's filled with 600 fill DownTek™ down which is designed to perform better than untreated down in wet or humid conditions. The traditional mummy bag shape keeps heat close to the body, and the draft collar and zipper draft tube team up to keep cold wind from sneaking in.
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