Thermarest - Questar 20F/-6C Bag

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Thermarest - Questar 20F/-6C Bag
Price From: $339.95

Availability: In stock

Stock #: HEAYZ-

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This is the award-winning, feature-packed down bag you've always wanted. We've loaded this bag with the comfort features that Therm-a-Rest bags are known for. Our SynergyLink™ Connectors integrate the bag with your sleeping pad while allowing our Zoned Insulation to keep fill where you need it most. The fit of the bag has been perfected in our onsite cold chamber to create our W.A.R.M. fit that allows room for multiple sleep positions without compromising thermal efficiency. Stuffed with water-resistant 650 fill Nikwax Hydrophobic Down certified by the Responsible Down Standard, the four-season Questar is ready for your next backcountry adventure. The Questar is offered in three sizes, and designed to fit both men and women. Compression sack and storage sack included.


  • 650 Fill Nikwax Hydrophobic Down™: Absorbs 90% less water and dries 3 times faster without using dangerous PFCs.
  • 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.
  • Box Baffled Construction: Uses mesh walls to maximize loft and minimize cold spots.
  • Toe-asis™ Foot Warmer Pocket: Baffled pocket of insulation rapidly warms cold feet.
  • Quilt and Blanket Loops: Customize your sleep system by layering our quilts or tech blankets for increased warmth.
  • Responsible Down Standard Certified: Certification that ensures that the waterfowl in the down supply chain are treated humanely.
  • 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


Size Small Regular Long
Weight : 2lbs (0.92kg) 2lbs 5oz (1.04kg) 2lbs 7oz (1.10kg)
Width: 29 in (74cm) 31.5in (80cm) 33in (84cm)
Length: 73in (185 cm) 80 in (201cm) 85in (216cm)
Height: 4.5in (11cm)
Fits: 66in (168cm) 72in (183cm) 78in (198cm)
Shoulder Girth: 58in (147cm) 63in (1160cm) 66in (168cm)
Hip Girth: 58in (147cm) 61in (160cm) 64in (163cm)
Foot Box Girth: 44in (112cm) 46in (117cm) 51in (130cm)
Foot Width: 22in (56cm) 23in (58cm) 25.5in (65cm)
Packed Dimensions: 9 in x 14 in (23 cm x 36 cm)
EN Comfort: 31 F/0 C
EN Limit: 20 F/-6 C
EN Extreme: -11 F/-24 C
Fill Material: 650 Fill Nikwax Hydrophobic Down, RDS, ThermaCapture Seams
Fill Weight: 1 lb (0.47 kg) 1 lb 3 oz (0.54 kg) 1 lb 5 oz (0.61 kg)
Shell Fabric: 20D Polyester Ripstop w/DWR
Lining Fabric: 20D Polyester Taffeta
Zipper Side: Left
Country of Origin: China

Additional Information

Year Spring 2020
Zipper Type Left
Stuff Sack Included
Material 20D Polyester Ripstop w/DWR
Insulation 650 Fill Nikwax Hydrophobic Down, RDS, ThermaCapture Seams
Temp Rating Comfort: 31 F | Limit: 20 F | Extreme:-24 C
Length 66 in 72 in 78 in
Shoulder Girth 58 in 63 in 66 in
Hip Girth 58 in 61 in 64 in
Foot Girth 22 in, 56 cm | 23 in, 58 cm | 25.5 in, 65 cm
Packed Size 9 in x 14 in (23 cm x 36 cm)
Weight 2 lbs


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