Product Details
Jump to: Our Verdict / Features / Specifications
We're working out what we think - we'll add our view here!
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
We're working out what we think about Big Agnes's 2026 Greystone 20 Down Sleeping Bag, we'll add our comments here in due course.
- 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
