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This Marmot CWM EQ bag is designed for extreme cold, from polar regions to high-altitude mountaineering in the Himalayas, with the highest quality 800-fill-power goose down and a waterproof shell.

  • Features

    • Marmot MemBrain® ripstop nylon laminate shell is waterproof, breathable and downproof
    • MemBrain technology reacts as the temperature inside your sleeping bag rises, increasing its breathability to keep you dry and comfortable
    • Lofty, premium 800-fill-power goose down offers superb warmth for minimal weight; It's meticulously cleaned and processed for hypoallergenic qualities
    • 9-baffle chest section provides maximum goose down control for warmth and durability
    • 6-Baffle Hood envelops your head in warmth; Face Muff allows hood to be cinched snug without digging into your face
    • No more midnight drawcord fumbling—smooth, flat upper cord and hard, round lower cord make hood adjustments easy
    • Hood closure system stays closed without the use of rip-and-stick and also keeps the drawstring and zipper away from your face
    • Spacious 11-baffle footbox allows down to loft fully; footbox is reinforced to handle extra abuse of boot liners and water bottle
    • Down-filled draft collar increases warmth; hidden pocket in down-filled draft tube keep small items such as lip balm or your watch warm and accessible
    • Zipper guards prevent zipper snags; locking, full-length zippers keep bag from opening in the night
    • Comes with nylon stuff sack and a storage bag


    Many sleeping bags are rated for temperature by an independent testing protocol. With both European Norm (EN) 13537 and International Organization for Standardization (ISO) 23537 testing, each bag gets a Comfort (or T-Comfort) rating and Lower (or T-Limit) rating. The Comfort/T-Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower/T-Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a hat, sleeping on a single 1 in. thick insulating pad. Many brands use the Comfort rating for women's bags and the Lower rating for men's and unisex bags. Everyone's body and sleep comfort differ, so EN and ISO ratings are simply a guideline to help you compare products.
    View all Marmot Men's Sleeping Bags
  • Technical Specs

    Best Use



    Tested Lower Limit

    Not applicable degrees (F) - EN

    Tested Comfort

    Not applicable degrees (F) - EN

    Temperature Rating (F)

    -40 degrees (F)

    Temperature Rating (C)

    -40 degrees (C)



    Insulation Type



    800-fill goose down



    Sleeping Bag Shape


    Stuff Sack Size

    9.5 x 19 inches



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