Therm-a-Rest PolarRanger -20F/-30C Sleeping Bag Regular flame

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 GRS-certified 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.

SynergyLink Connectors
By integrating the mat and sleeping bag, the SynergyLink Connectors ensure that you don't roll off the mat while sleeping - without constricting. Two elastic straps can be adjusted to fit any mat up to 63.5 cm wide.

Nikwax water repellent down
Used in all Therm-a-Rest down sleeping bags and camping quilts, Nikwax water-repellent down dries three times faster than untreated down and clumps 30 times later than untreated down. They also absorb up to 70% less moisture than untreated down.