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Check out our clearance section for awesome end of season deals!
Check out our clearance section for awesome end of season deals!

Therm-a-Rest - Parsec 0F/-18C Sleeping Bag

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Original price $699.95
Original price $699.95 - Original price $799.95
Original price $699.95
Current price $524.96
$524.96 - $599.96
Current price $524.96
Size: Small

Therm-a-Rest Parsec 0F/-18C Sleeping Bag

Whether on an overnight snowshoe, ski tour or just a quiet, off-season backpack, the Parsec 0F/-18C sleeping bag provides plenty of warmth for winter pursuits. Filled with highly compressible 800-fill Nikwax Hydrophobic Down that absorbs 90% less water and dries 3x faster than untreated down, the Parsec keeps you warm and dry in wet conditions.

The ultralight 20-denier GRS-certified 100% recycled nylon shell is a smart choice for saving weight and the planet, while the new anti-snag YKK zipper prevents wear and tear with easy entries and exits. Improved—and optional—SynergyLink Connectors strap to your sleeping pad to keep your sleeping bag in place to boost comfort and overall warmth efficiency.

A refined shape shaves up to 2 oz off the previous version while adding a bit of girth in the shoulder to accommodate more clothing layers. Cold feet in the dead of winter? Not a chance, our down-lined Toe-asis foot pocket keeps your feet cozy all night long.



  • Recycled Shell & Liner: GRS-certified 100% recycled fabrics are eco-friendly while being lightweight, soft and durable.
  • 800-Fill Nikwax Hydrophobic Down: PFC-free and absorbs 90% less water and dries 3x faster than untreated down.
  • Responsible Down Standard Certified: Certification that ensures the waterfowl in the down supply chain are treated humanely.
  • SynergyLink Connectors: Ultralight straps create a secure bag-to-sleeping pad connection that optimizes the comfort and thermal efficiency of your entire sleep system.
  • Heat-Mapped Zoned Insulation: Delivers an elite warmth-to-weight ratio by allocating insulation to where you need it and reducing it where you don’t.
    • YKK Anti-Snag Zipper: Prevents accidental tears and eases entries and exits.
    • Quilt and Blanket Loops: Customize your sleep system by layering our quilts or tech blankets for increased warmth.
    • Additional Features: Toe-asis Foot Warmer Pocket, Heat-trapping draft collars, full-length zipper draft tubes, differential cut, snag-free zipper, cinchable hood and external zip pocket.

Compression and storage sack included.

Color - Larch

Weight - Small 2 lbs 2 oz / 0.98 kg | Regular 2 lbs 6 oz / 1.09 kg | Long 2 lbs 9 oz / 1.16 kg

Width - Small 29 in | Regular 31.5 in| Long 33 in

Length - Small 73 in | Regular 80 in| Long 85 in

Fits - 66 in / 168 cm | Regular 72 in / 183 cm | Long 78 in / 198 cm

Girth, Shoulder - Small 58 in / 147 cm | Regular 63 in / 160 cm | Long 66 in / 168 cm

Girth, Hip - Small 57 in / 145 cm | Regular 58 in / 147 cm | Long 59 in / 150 cm

Girth, Foot box - Small 44 in / 112 cm | Regular 46 in / 117 cm | Long 51 in / 130 cm

Packed dimension - 8 x 9 in | 20 x 23 cm

EN Comfort - -10 C / 14 F

EN Limit - -18 C / 0F

EN Extreme (Not Recommended) -

Fill material - 800 Fill Goose Nikwax Hydrophobic Down RDS

Fill weight - Small 1 lbs 8 oz / 0.68 kg | Regular 1 lbs 10 oz / 0.74 kg | Long 1 lbs 13 oz / 0.81 kg

Shell fabric -100% Recycled Nylon RipStop w/ DWR

Footbox Fabric - Recycled Nylon RipStop w/ DWR

Lining fabric -100% Recycled Nylon RipStop

Zipper Location - Left