Saros 20

$209.95 - $219.95
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The three-season Saros 20 sleeping bag is the perfect choice for backcountry trips that start with a shaky forecast. The Saros uses proprietary eraLoft™ synthetic insulation, which is quick-drying and weather-resistant, making it ideal for backpacking and mountaineering in wet weather from spring to fall.

The fit of the bag has been perfected in Therm-a-Rest's onsite cold chamber to create their W.A.R.M. fit that allows room for multiple sleep positions without compromising thermal efficiency. SynergyLink™ Connectors also integrate the Saros with your pad to ensure superior comfort with efficient warmth and the freedom to move as you like for the best night's rest possible.

Compression sack and storage sack included. Sleeping pad sold separately.


Regular: 3 lbs 3 oz / 1.46 kg
Long: 3 lbs 9 oz / 1.61 kg
Temperature Rating F:
20° F
Temperature Rating C:
-6° C
Insulation Type:
eraLoft Polyester Hollow Fiber
Fill Weight:
Regular: 2 lbs 5 oz / 1.06 kg
Long: 2 lbs 9 oz / 1.17 kg
Shell Material:
20D Polyester w/ DWR
Lining Material:
20D Polyester Taffeta
Reg: fits users up to 6 ft
Long: fits users up to 6 ft 6 in
Stuff Size:
9.5 x 10.5 in
4.5 in
Circumference at Shoulders:
Reg: 63 in.
Long: 66 in.
Circumference at Hips:
Reg: 61 in.
Long: 64 in.
Circumference at Foot:
Reg: 46 in.
Long: 51 in.
Other Features:
  • eraLoft™ Insulation: Efficient and compressible, our water-resistant synthetic fill uses hollow fibers to reduce weight without sacrificing warmth.
  • W.A.R.M. Fit: With Additional Room for Multiple positions (W.A.R.M.) fit means this bag allows for various natural sleep positions while maintaining thermal efficiency.
  • SynergyLink™ Connectors: Integrate the bag with a pad for optimal comfort and thermal efficiency; removable for versatility.
  • Zoned Insulation: Maximizes warmth and saves weight by intentionally placing down where you need it most.
  • Toe-asis™ Foot Warmer Pocket: Baffled pocket of insulation rapidly warms cold feet.
  • Quilt and Blanket Loops: Customize your sleep system by layering Therm-a-Rest quilts or tech blankets for increased warmth.
  • Additional features: Heat-trapping draft collar, full-length zipper draft tube, snag-free zipper, cinchable hood and external zip pocket.
  • Compression sack and storage sack included

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