Big Agnes Zirkel 20 Degree Down Sleeping Bag.
Big Agnes Zirkel 20 Degree Down Sleeping Bag.
The Zirkel will amaze you at how such a light weight bag can be so comfortable. Big Agnes takes a unique approach: their sleeping bags have no insulation on the bottom; instead they rely on Big Agnes’ sleeping pads (sold separately) to provide the required insulation beneath your body. The result is healthy weight savings. A sleeping bag with the name Zirkel has a lot to live up to. It demands superior quality and cutting edge performance. The Zirkel will set the stage for future bags.
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