A high-mountain workhorse.
Mountain Equipment's Aurora I 23-Degree Synthetic Sleeping Bag is the bag you want in harsh, wet, and humid environs. Utilizing two different types of synthetic insulation, both the Climashield Apex and Prism fills have been treated with a DWR finish to repel moisture and keep the bag insulating when things get wet. A stripped-down design gives this bag simple functionality and a relatively light weight.
Hovering right around 2lb 5oz, the Aurora I is a viable option for long-haul backpacking trips and summer alpine climbs, while the bag's lightweight and compressible Helium 50 fabric keeps it compressible when saving pack space is key. The Aurora sports a draft tube and collar, which work in concert with a slim-fitting hood to lock in warmth during cold nights spent bivied under looming granite walls or high and remote alpine meadows.
- 23-degree Fahrenheit temperature rating
- Climashield Apex and Prism synthetic insulation
- Alpine Fit mummy shape
- DWR-treated insulation
- Syntethic fill control hood
- 3/4-length left- or right-handed zip
- Trapezium one-piece foot box
- Shingle construction
- Solus draft collar and tube
- Stuff sack included
- Item #MEQ0053
- Q & A
Got this bag to use as 3 season. It's very lightweight and compressible, but I found the rating to be off. I am a warm sleeper, but I found this bag borderline in the mid 40s. I have had a few bags over the years, and never this experience, in fact usually the opposite. A note about conditions: Saturated/wet, high humidity at about 5200' in Cascades inside solo Walrus Microswift (pic below)...but that's why I bought this synthetic bag. ME has an upgrade policy if not satisfied, and Backcountry has awesome customer service, so I expect everything to be okay at the end of the day, but thought since there's no ratings yet, my experience would be helpful to others.