When you need feature-packed comfort for frigid backcountry conditions, it’s time to pack the Questar 0F/-18C. Offering supreme comfort and versatility, this bag is loaded with the comfort features that Therm-a-Rest bags are known for.

Features:

• Designed to fit both men and women
• 650 fill Nikwax Hydrophobic Down™:
• Absorbs 90% less water and dries 3 times faster without using dangerous PFCs
• Certified by the Responsible Down Standard - Ensures that the waterfowl in the down supply chain are treated humanely
  
• SynergyLink™ connectors:
• Integrate the bag with a pad for optimal efficiency and comfort
• Removable for versatility
• Zoned insulation: Maximises warmth and saves weight by intentionally placing fill where you need it most
• W.A.R.M. fit:
• "With Additional Room for Multiple positions"
• Allows for various natural sleep positions while maintaining thermal efficiency
• Perfected in Therm-a-Rest's onsite cold chamber
  
• Box baffled construction: Uses mesh walls to maximise loft and minimise cold spots
• Toe-asis™ foot warmer pocket: Ergonomic toe box that rapidly warms cold feet in a pocket of warm down
• Quilt and blanket loops: Customise your sleep system by layering Therm-a-Rest quilts or tech blankets for increased warmth
• Heat-trapping draft collar
• Full-length zipper draft tube
• Snag-free zipper
• Cinchable hood
• External zip pocket
• Compression sack and storage sack included
  
• Four seasons
• Max user height: 183 cm
• Weight: 1.21 kg
• Dimensions:
• Width: 80 cm
• Length: 203 cm
• Height: 14 cm
• Shoulder girth: 160 cm
• Hip girth: 155 cm
• Foot box girth: 117 cm
• Packed: 20 x 25 cm
• Temperature:
• Comfort: -10ºC / 14ºF
• Limit: -18ºC / 0ºF
• Materials:
• Shell: 20D Polyester w/ DWR
• Lining: 20D Polyester Taffeta
• Fill: 650 Fill Duck Nikwax Hydrophobic Down RDS