Big Agnes Greystone 20 Mummy Bag

The Big Agnes Greystone 20° Sleeping Bag is a mummy-style sleeping bag that delivers value and performance in a lightweight bag featuring 600-fill DownTek water-repellent insulation.


Regular price $269.95
Sale price $269.95 Regular price
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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 
Big Agnes

Big Agnes Greystone 20 Mummy Bag


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