Mountain Equipment Nova II Sleeping Bag - Men's

$187.73Compared to $269.00*
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Color: Cosmos/Blaze
Size: Regular - Left Zip
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Lightweight, spacious and comfortable, this Mountain Equipment Nova II sleeping bag retains the low weight and compressibility required for backpacking all while maximizing its warmth.

  • Features

    • Polarloft® insulation helps maintain warmth even while wet
    • HELIUM™ 20-denier outer shell is light and highly breathable
    • Keystone shingle construction offers the greatest warmth for the minimum weight
    • Offset layer construction underneath
    • Mountain Fit is both spacious and thermally efficient
    • Anatomically shaped hood and footbox
    • Integrated collar with Lode Lock™ closure
    • Full-length zip baffle
    • Includes a lightweight compression sack
    • Mountain Equipment is a member of Fair Wear Foundation, a European initiative working to improve workplace conditions in the garment and textile industry
    • Closeout


    Many sleeping bags are rated for temperature by an independent testing protocol. REI and the broader industry now use the International Organization for Standardization (ISO) 23537 protocol, which improves on the older European Norm (EN) 13537 standard; you may still see older items in our assortment that were only EN tested. With either protocol, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating. The Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower 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 pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38. Many brands use the Comfort rating for women's bags and the Lower Limit rating for men's and unisex bags. Everyone's body and sleep comfort differ, and conditions of use (posture, clothing, sleeping pad R-value, wind, humidity, etc.) affect total insulation, so EN and ISO ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth.
    View all Mountain Equipment Backpacking Sleeping Bags
  • Technical Specs

    Best Use


    Tested Lower Limit

    27 degrees (F) - ISO

    Tested Comfort

    37 degrees (F) - ISO

    Temperature Rating (F)

    27 degrees (F)

    Temperature Rating (C)

    -3 degrees (C)


    2 lbs. 13 oz.


    20-denier Helium nylon

    Zipper Location


    Insulation Type



    Polarloft synthetic fibers


    30-denier nylon

    Sleeping Bag Shape


    Fits Up To (in.)

    73 inches

    Shoulder Girth (in.)

    31 inches

    Hip Girth (in.)


    Stuff Sack Size

    11 x 9 x 7 inches



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