Big Agnes Greystone 20 Mummy Bag
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Why we like this product
- PFC-free water-repellent coating keeps you dry without the use of harmful chemicals
- 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
- Insulated draft collar along upper hood opening seals out drafts when cinched
- Two-way zipper and Zipper Garage positioned on the sleeper's left side of the bag
The Big Agnes Greystone 20° Sleeping Bag delivers technical, lightweight performance that excels on and off the trail with a high thermal value, compressibility, and comfort. The Greystone features R.D.S. Certified 600-fill DownTek insulation with a PFC-free water-repellent finish to combat damp conditions and maintain loft. The recycled shell and lining fabrics have also been treated with a PFC-free coating to provide an additional layer against moisture. The contoured hood follows the shape of your head with an insulated tube along the upper hood opening to seal out drafts when cinched. The Greystone left zip bag can mate with the right zip women’s bag, allowing you to share warmth with your tent mate.
Weight | Regular - 2 lbs 4 oz Long - 2 lbs 7 oz |
Pack Size | Regular - 8.5" x 8.5" Long - 9" x 9" |
Temperature Rating | 20° |
Bag Shape | Mummy |
Insulation Type | 600-fill DownTek |
Fill Weight | Regular - 19 oz Long - 21 oz |
Max User Height | Regular - 6' Long - 6'6" |
Shoulder Girth | Regular - 60" Long - 63" |
Hip Girth | Regular - 54" Long - 57" |
Foot Girth | Regular - 36" Long - 39" |
Water-Resistant | Yes, PFC-free water-repellent finish |
Material | Recycled Polyester ripstop (shell), recycled Polyester Taffeta (lining) |
Manufacturer Warranty | Limited warranty |


