DESCRIPTION

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The Mountainsmith Cypher Sleeping Bag is the warmest of the Mountainlight series sleeping bags, but despite being fully capable of winter camping, remains remarkably lightweight. When products lose weight, they sometimes lose durability not the Mountainlight series Cypher bag. Side block baffle construction prevents wind from penetrating your bag when you’re in a bivy situation, and a full draft tube with a two sided neck collar keeps you comfortably warm.