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THERMAREST Polar Ranger™ -20F/-30C Sleeping Bag

  • Brand: Thermarest
  • Model Code: 11401
  • Availability: 10

Designed in conjunction with renowned polar explorer Eric Larsen, the Polar Ranger -20F/-30C down sleeping bag is built for the coldest places on earth. Previously a recipient of Backpacker Magazine’s Editor’s Choice Award, the lightest and most feature-rich bag in its class just got better. It utilizes cutting edge box-baffled construction and is filled with highly compressible, PFC-free 800-fill Nikwax Hydronik Down™. This advanced down maintains its loft and warmth longer, even in the challenging conditions of extended expedition use in the arctic cold. It absorbs 90% less water and dries 3x faster than untreated down—a big plus on long trips where periodic drying is required. The ultralight shell and soft liner are made from planet-friendly GRS-certified 100% recycled nylon. A unique snorkel hood with a magnetic closure helps seal in warmth while routing exhaled moisture away from the bag to preserve loft. Drafts are kept at bay by extensive, overstuffed draft tubes and a pair of side vents allow for custom ventilation while freeing your arms while still in the bag. Other features include an insulated Toe-asis™ foot-warming pocket, SynergyLink™ Connectors to link bag and sleeping pad, an interior stash pocket, external loops for attaching a quilt or blanket for more warmth, and an anti-snag YKK® zipper.

  • Fill material – 800 Fill Goose Nikwax Hydrophobic Down RDS
  • Shell fabric – 100% Recycled Nylon RipStop w/ DWR
  • Lining fabric – 100% Recycled Nylon RipStop


  Regular Long
Width 32 in 34 in
Length 81 in 86 in
Girth, Shoulder 64 in 68 in
Girth, Hip 59 in 60 in
Girth, Foot box 46 in 51 in
Packed dimension 8.5 x 10 in 8.5 x 10 in


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