Therm-a-Rest Winter-Sleeping-Bags Polar Ranger -20F/-30C

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 Hydrophobic 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.
100% Recycled Nylon Ripstop
Imported
The Polar Ranger is the lightest, most feature-rich down sleeping bag for high-performance in the extreme cold
800-fill Nikwax Hydrophobic Down is RDS-certified and PFC-free; absorbs 90% less water and dries 3x faster than untreated down
Snorkel hood allows easy breathing and ventilates exhaled moisture to preserve loft; new magnetic closure keeps cross-drafts at bay and eases entry/exit
Side vents open for external arm use and allow customizable temperature control; overlapping draft tubes prevent cold spots when closed
GRS-certified 100% recycled fabrics are eco-friendly while being lightweight, soft and durable; anti-snag YKK zipper ensures easy entries and exits and prevents tears
Ultralight SynergyLink Connectors create a secure bag-to-sleeping pad connection that optimizes the comfort and thermal efficiency of your entire sleep system
Responsible Down Standard Certified which ensures the waterfowl in the down supply chain are treated humanely