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Lightweight and compressible, the Marmot Never Winter makes an ideal 3-season bag for camping and river trips, and its water-resistant 650-fill down insulation keeps you warm when frost is in the air.

  • Features

    • With a European Norm (EN) lower-limit rating of 26.6°F, the Never Winter Sleeping Bag is suitable for 3-season use
    • Certified 650-fill duck down is treated with Down Defender to improve water resistance in wet conditions
    • Anatomic footbox with wraparound construction increases warmth; heater pocket in footbox holds disposable hand warmers (sold separately)
    • Nautilus multi-baffle hood with drawcord limits heat loss
    • Locking YKK 2-way zippers with antisnag slider is backed with a snagless, insulated draft tube for increased heat retension
    • Ground-level side seams increase heat retension and eliminate cold drafts
    • Zipper garage keeps zipper pull in its place during the night
    • Stretch tricot baffles keep down from shifting
    • Internal stash pocket
    • 2 hang loops for storing or airing out bag
    • Stuff and storage sack included


    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

    26.2 degrees (F) - EN

    Tested Comfort

    36.1 degrees (F) - EN

    Temperature Rating (F)

    30 degrees (F)

    Temperature Rating (C)

    -1 degrees (C)



    Zipper Location


    Insulation Type


    Water-Resistant Down



    650-fill duck down



    Sleeping Bag Shape


    Stuff Sack Size

    7.5 x 16 inches

    Stuff Sack Volume

    11.6 liters

    Compressed Volume




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