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Thermarest Parsec -6C Sleeping Bag

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Updated to push further and move faster, the Parsec 20F/-6C is the ideal lightweight sleeping bag for for alpine starts and mountainside bivys.

Just like an alpinist precisely selects his rack or a skier carefully chooses her line, Thermarest took the time to dial in the small details that create comfort and security in the mountains.

After you break camp, the mummy-style bag uses a compression sack to easily fit into your pack without weighing you down. Designed with high-quality materials and Therm-a-Rest performance features like Synergylink Connectors.

The Parsec easily handles three-season bivys and long pushes into the backcountry. Bottom line, those that need their sleeping bag to go further choose the Parsec.

  • High-Performance Sustainability: Shell and liner are made of a nylon that is softer to the touch, lighter than previous versions, and 100% recycled.
  • Sustainable 800 Fill Nikwax Hydrophobic Down: Responsible Down Standard certified, it absorbs 90% less water and dries 3 times faster without using dangerous PFCs for better performance in wet weather.
  • Redesigned SynergyLink Connectors: Lighter design secures the bag to a pad, preventing midnight roll-offs while increasing the thermal efficiency of your sleep system.
  • No-Fuss Zipper YKK anti-snag zipper prevents accidental tears, making midnight ventilation and early morning exits easy.
  • Refined Fit Tested and perfected in our onsite cold chamber, the roomy fit and precise down distribution achieve optimal thermal efficiency and comfort.
  • Toe-asis Foot Warmer Pocket: Ergonomic toe box rapidly warms cold feet.
  • Additional Features: Heat-trapping draft collar, full-length zipper draft tube, cinchable hood, external zip pocket, and blanket attachment loops.
  • Compression sack and storage sack included.
  • Comfort range: 0°C
  • Transition range: -6°C
  • Risk range: -24°C
  • Liner fabric: 20D Polyester Taffeta w/ ThermaCapture coating
  • Shell fabric: 20D RipStop Polyester
  • Fill: 800 Fill Goose Nikwax Hydrophobic Down RDS w/ ThermaCapture Lining
  • Zipper side: Left


  • Length: 168cm
  • Weight: 720 g
  • Packed dimensions: 18x21cm
  • Girth, Shoulder: 145 cm
  • Girth, Hip: 142 cm
  • Girth, Foot box: 112 cm
  • Fill weight: 422 g


  • Length: 183cm
  • Weight: 805 g
  • Packed dimensions: 18x21cm
  • Girth, Shoulder: 157 cm
  • Girth, Hip: 145 cm
  • Girth, Foot box: 117 cm
  • Fill weight: 465 g


  • Length: 198cm
  • Weight: 890 g
  • Packed dimensions:  18x21cm
  • Girth, Shoulder: 165 cm
  • Girth, Hip: 147 cm
  • Girth, Foot box: 130 cm
  • Fill weight: 507 g