Therm-a-rest Polar Ranger Sleeping Bag review: Price and availability. The Therm-a-rest Polar Ranger is available to buy now from third-party retailers such as Snow+Rock, GO Outdoors, Cotswold ...

The Therm-a-Rest Polar Ranger is the ultimate cold-weather sleeping bag. It's warm, extremely comfortable, sustainably made, and just a fantastic piece of outdoor equipment overall.