Expedition and camping sleeping bag

1.a water-resistant/breathable shell and a double zipper system for temperature fluctuations 2.have a large cotton storage bag Unique double zipper system allows you to adjust comfort as needed—fully close both zippers to increase warmth, open inner zipper to decrease warmthGoose down is efficiently distributed for maximum warmth and compressibility—800-fill-power? goose down on top and 700-fill-power?goose down underneathExclusive  Down Fill Calculator optimizes the amount of down per baffle for the most warmth with the least amount of downUltralight ripstop nylon shell fabric was specifically designed to dissipate moisture from the inside, as well as repel moisture from the outside, keeping the down dryIn-the-round pattern wraps vertical baffles around perimeter of sleeping bag, from head to foot, creating a 3-dimensional bag that wraps you in warmthBaffle spacing is optimized to keep down in place and prevent cold spotsMulti-chambered hood and anatomically-contoured, insulated draft collar seal in heat; trapezoidal footbox mirrors sleeping position for room to move and thermal efficiencyA pass-through pocket with zipper access on both outside and inside provides a convenient way to get to your stashed essentials such as eyewear and headlampIncludes nylon stuff sack and large cotton storage bag

Expedition and camping sleeping bag