Therm-a-Rest has been helping extreme mountain athletes and explorers stay warm and comfortable at camp for decades. In 2018, Therm-a-Rest introduces a sleeping bag built to endure the coldest destinations in the world.

Designed with polar explorer and mountaineer, Eric Larsen, the Polar Ranger™ -20F/-30C claims to be the only bag you’ll need when going to sub-zero temps. Using 800-fill Nikwax Hydrophobic Down and ThermaCapture heat-trapping technology throughout the entire bag, the Polar Ranger is equipped with every essential you need for extreme-cold camping. Touches like overlapping draft tubes, side vents and a unique synthetic snorkel hood designed to funnel air in a way that keeps condensation from chilling your face, are just a few ways the Polar Ranger keeps you warm and secure at frigid camps.

“On an expedition, aside from polar bears, my primary worry at night is warmth,” said Therm-a-Rest ambassador, Eric Larsen. “Having the right sleep system can mean life or death. Working with Therm-a-Rest to create the Polar Ranger meant years of their trusted technologies mixed with my polar expedition experience to create the best new negative-degree bag on the market.”

The new extreme-weather sleeping bag weighs in at 1459g in the regular size. Further features include top-zip entry, quilt and blanket loops for extra layering, SynergyLink™ connectors to integrate bag to mattress, and a Toe-asis™ foot warmer pocket. The new Polar Ranger -20F/-30C will be available in stores from Spring 2018. For more information, please visit the website.