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A comfortable, well-balanced three-season down sleeping bag .
Big Agnes says:
Ideal for backpacking but versatile enough for couch surfing, the Greystone is insulated with 650 Downtek™ PFC-Free, uses baffle construction for efficient heat distribution, and includes a water-resistant coating to keep you dry. If you’re in the market for a high quality, lightweight mummy shaped bag that packs small and keeps you toasty in the backcountry, the Greystone is your ticket to getting out there in comfort!
Our Verdict
The Greystone 20 focuses on straightforward performance, with a relaxed mummy shape that feels less restrictive than many bags in this category while still effectively retaining heat. The 650 fill down offers dependable warmth, the -2°C comfort Temp, suits early spring and late autumn
At 998g, it is not aimed at cutting weight to a minimum, but it packs down reasonably small. The shell fabric has a slightly more durable feel than lighter alternatives, which gives some reassurance over repeated use. The treated down copes well with damp air, maintaining loft better than untreated fills.
Overall, it delivers a comfortable and dependable sleep system without chasing extremes in weight or pack size.
- Reviewed by Ultralight Outdoor Gear
Features
- Delivers technical, lightweight performance with high thermal value, compressibility, and comfort
- Traditional mummy shape allows for light weight and increased body heat retention
- Contoured hood follows the shape of your head for a more comfortable fit
- Oversized no-draft collar and no-draft zipper to keep the cold out
- Mate together left (All-Gender) and right (Women’s) zip bags to share warmth with your tent mate
Specifications
Regular -
- Weighs: 998g
- Fits: fits up to 183cm
- Stuff Sack Size: 23 x 51cm
- Fill Power: 650
- Fill Weight: 17oz / 480g
- Comfort Temperature: 29°F / -2°C
- Limit Temperature: 18°F / -8°C
- Extreme Temperature: -15°F / -26°C
Long -
- Weighs: 1122g
- Fits: fits up to 198cm
- Stuff Sack Size: 23 x 51cm
- Fill Power: 650
- Fill Weight: 19oz / 539g
- Comfort Temperature: 29°F / -2°C
- Limit Temperature: 18°F / -8°C
- Extreme Temperature: -15°F / -26°C
Material & Construction
- Shell: Recycled polyester ripstop with water-repellent finish without intentionally added PFAS
- Lining: Recycled polyester taffeta with water-repellent finish without intentionally added PFAS
- Fill: 650 fill Downtek™ PFC-Free with bluesign® Certified water-repellent chemistry
