Our premium warm-weather goose down bag offers the perfect of balance low weight, high-quality materials and top performance—great for backpackers and ultralight adventurers alike.
Fill
750-fill goose down
Temperature Rating (F)
41 degrees (F)
- Features premium 750-fill-power goose down insulation, a downproof, partially recycled ripstop polyester shell and lining
- Exclusive REI Down Fill Calculator optimizes the amount of down per baffle for the most warmth with the least amount of down
- In-the-round pattern wraps vertical baffles around perimeter of sleeping bag, from head to foot, creating a 3-dimensional bag that wraps you in warmth
- Contoured hood, face muffler, trapezoidal foot box, full-length antisnag zipper, and full-length draft tube with ground-level seams all keep body heat in, cold air out
- External chest pocket keeps essentials such as headlamp, watch and glasses right at hand and easy to find in the dark
- Differentiated drawcords (1 round, 1 flat) let you adjust hood and neck easily in the dark
- Pad loops provide attachment points to keep your sleeping bag and pad together, so you needn't worry about rolling off onto the cold ground (straps sold separately)
- European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags
- Comes with stuff sack and large cotton storage bag
- REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Our backpacking bags are rated for temperature according to an independent testing protocol: International Organization for Standardization (ISO) 23537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
View all REI Co-op Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 37 degrees (F) - EN |
| Tested Comfort | 49 degrees (F) - EN |
| Temperature Rating (F) | 41 degrees (F) |
| Temperature Rating (C) | 5 degrees (C) |
| Shell | Ripstop polyester |
| Insulation Type | Down |
| Fill | 750-fill goose down |
| Lining | Ripstop polyester |
| Sleeping Bag Shape | Mummy |
| Stuff Sack Size | 7.5 x 15 inches |
| Stuff Sack Volume | 10.9 liter |
| Gender | Men's |
| Sustainability | From a Climate Neutral Certified brand |