Therm-a-Rest Polar Ranger -20 Down Sleeping Bag

This product is not available.

Shop similar products

Polar expeditions and high-altitude adventures demand uncompromising warmth. The Therm-a-Rest Polar Ranger -20 sleeping bag is decked out with features to maximize warmth, even in Arctic settings.

  • Features

    • Snorkel hood controls frost created by breath and eliminates warmth-sapping cross drafts; synthetic-filled snorkel resists moisture
    • 800-fill-power Nikwax Hydrophobic Down™ dries 3 times faster than untreated down without using dangerous PFCs
    • Toe-asis™ baffled pocket of insulation helps rapidly warm your cold feet inside the ergonomic footbox
    • Overlapping side vents open to allow arm use and customizable temperature control
    • Overlapping draft tubes prevent cold spots when zippers are closed
    • SynergyLink™ Connectors integrate the bag with a mattress (not included) for optimal comfort and efficiency; they're also removable for versatility
    • Shell fabric has been treated with a durable water repellent (DWR) to shed moisture
    • Quilt and blanket loops let you securely attach additional insulation (not included)
    • Responsible Down Standard certification ensures that the waterfowl in the down supply chain are treated humanely
    • Storage sack and compression stuff sack included
    • Designed in conjunction with polar explorer Eric Larsen


    View all Therm-a-Rest Men's Sleeping Bags
  • Technical Specs

    Best Use



    Temperature Rating (F)

    -20 degrees (F)

    Temperature Rating (C)

    -30 degrees (C)


    Ripstop polyester

    Zipper Location


    Insulation Type


    Water-Resistant Down



    800-fill-power goose Nikwax Hydrophobic down


    Polyester taffeta

    Sleeping Bag Shape


    Stuff Sack Size

    11 x 20 inches

    Stuff Sack Volume

    13 liters

    Compressed Volume

    11.7 liters




    Down certified to the Responsible Down Standard (RDS)

  • Reviews
    15 reviews with an average rating of 4.5 out of 5 stars

    Loading Reviews...
  • Questions & Answers

    Loading Questions...