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The best of both worlds, this 3-season sleeping bag combines synthetic and down insulation with body-mapped construction to maximize the value of both insulations and keep you warm down to 30°F.

  • Features

    • Synthetic SpiraFil on the ground level and water-resistant, 650-fill-power down on top deliver excellent warmth, even in damp, cold conditions
    • Body-mapped insulation yields maximum thermal efficiency by increasing insulation around the parts of the body that need it most
    • Hard-wearing outer shell has ripstop nylon on top and polyester on bottom
    • 3D hood construction provides an ergonomic fit for greater warmth, face muff adds comfort by keeping zippers, drawstrings and hook-and-loop closures away from face
    • Full-length zipper is backed with a snagless, insulated draft tube


    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

    27 degrees (F) - EN

    Tested Comfort


    Temperature Rating (F)

    30 degrees (F)

    Temperature Rating (C)

    -1 degrees (C)


    Top shell: 30-denier ripstop nylon; bottom shell: 70-dnier polyester

    Zipper Location


    Insulation Type



    Water-Resistant Down



    650-fill down / SpiraFil synthetic fibers


    30-denier nylon

    Sleeping Bag Shape


    Stuff Sack Size

    8.5 x 18 inches

    Stuff Sack Volume

    16.8 liters



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