SKU: TSO10272

Thermarest Oberon -18C Sleeping Bag

Availability: Ships direct from NZ supplier.

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Crafted for adventurers that push deep into frigid backcountry winters.

For those that take their adventures into the heart of winter or into colder climates, the Oberon provides the crucial protection you need. 

Thermarest engineered the Oberon to protect athletes from extreme conditions during extreme pursuits, meticulously designing every gram to add warmth and security for the user.

Certified by the Responsible Down Standard, the bag's 800-fill Nikwax Hydrophobic Down repels moisture and stays warm in damp conditions. Get better rest while keeping the cold at bay with the Oberon.

Storage sack and compression stuff sack included.

  • 800 Fill Nikwax Hydrophobic Down: Lightweight fill stays dry and retains loft up to 60 times longer than untreated down. Absorbs 90% less water and dries 3 times faster without using dangerous PFCs.
  • ThermaCapture Lining: Top of bag is lined to trap radiant body heat and retain warmth without adding bulk or weight.
  • SynergyLink Connectors: Integrates the bag and mattress for optimal comfort and efficiency; removable for versatility.
  • Zoned Insulation: Maximizes warmth and saves weight.
  • Quilt and Blanket Loops: Customize your sleep system by layering our quilts or tech blankets for increased warmth.
  • Toe-asis Foot Warmer Pocket: Ergonomic toe box rapidly warms cold feet.
  • Additional Features: Heat-trapping draft collar, differential cut, full-length zipper draft tube, snag-free zipper, cinchable hood and external zip pocket.
  • Packed dimensions: 48x30cm
  • Comfort range: -10°C
  • Transition range: -18°C
  • Risk range: -40°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: 1015 g
  • Girth, Shoulder: 145 cm
  • Girth, Hip: 142 cm
  • Girth, Foot box: 112 cm
  • Fill weight: 710 g
  • Length: 183cm
  • Weight: 1105 g
  • Girth, Shoulder: 157 cm
  • Girth, Hip: 145 cm
  • Girth, Foot box: 117 cm
  • Fill weight: 775 g


  • Length: 198cm
  • Weight: 1191 g
  • Girth, Shoulder: 165 cm
  • Girth, Hip: 147 cm
  • Girth, Foot box: 130 cm
  • Fill weight: 840 g

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