The Kaibab is a twenty-degree workhorse. Whether your passion is hiking, hunting, or camping, this three-season sleeping bag gives you the versatility you need to be comfortable in a variety of temperatures and environments. The Kaibab capitalizes on the superior weight to insulation ratio of 850+ fill power premium goose down to cut weight but not warmth. The dimensions of a standard cut mummy bags provide you with sleep system ergonomics that achieve the perfect balance of comfort and weight. A YKK zipper, coupled with a full down draft tube and draft collar, seal out the cold.