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Big Agnes Bellyache Mountain SL Sleeping Bag

BLUE/GRAY

    Big Agnes Bellyache Mountain SL Sleeping Bag

    • $299.95 - $319.95
    5
    (4)

    Item # 845211

    Product size and color
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    With this new technology, you may actually want to backpack in the rain. Big Agnes Bellyache Mountain SL mummy sleeping bag features DownTek™ water-repellent down insulation.

    • DownTek 700-fill-power duck down repels water employing nano technology and a proprietary process to apply a micro-thin polymer to the down
    • DownTek down repels water and maintains loft and insulation value, even when exposed to moisture
    • Proprietary application process creates a water repellent, antimicrobial and antibacterial down insulation that actually floats on water
    • Vertical chambers with internal mesh gates keep insulation from shifting up and down
    • Traditional style mummy bag is designed without the integrated pad sleeve (normally found on Big Agnes System bags) and features full insulation underneath
    • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags
    • Ripstop nylon shell has a water-repellent finish to shed water
    • Nylon taffeta lining is soft and breathable
    • Down-filled collar at top seals around the neck to prevent warm air from escaping and cold air from entering
    • Large draft tube located behind the zipper prevents warm air from escaping and cold air from entering
    • Interior fabric loops stabilize a sleeping bag liner, sold separately
    • 2-way, full-length YKK zipper zips to other bags of opposite configuration
    • Big Agnes Bellyache Mountain SL mummy sleeping bag includes a mesh storage sack and a nylon stuff sack

    Imported.

    Item 845211

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    Big Agnes Bellyache Mountain SL Sleeping Bag Specs
    Specification
    Description
    Best use
    Backpacking
    17
    Unavailable
    17 degrees Fahrenheit
    -8 degrees Celsius
    2 lbs. 10 oz.
    1.1 / 1.1 kilograms
    Ripstop nylon
    Down
    700-fill duck down
    21 / 23 ounces
    Nylon
    Mummy
    70 inches
    60 inches
    54 inches
    9 x 17.5 / 10 x 17.5 inches
    18 liters
    Unisex
    EN lower limit (rating for men)
    EN comfort (rating for women)
    Temperature rating (F)
    Temperature rating (C)
    Weight
    Weight - metric
    Shell
    Insulation type
    Fill
    Fill weight
    Lining
    Sleeping bag shape
    Fits up to (in.)
    Shoulder girth (in.)
    Hip girth (in.)
    Stuff sack size
    Stuff sack volume
    Gender

    Big Agnes Bellyache Mountain SL Sleeping Bag Customer Reviews

    REVIEW SNAPSHOT®

    by PowerReviews
    Big Agnes Bellyache Mountain SL Sleeping Bag
     
    4.5

    (based on 4 reviews)

    100%

    of respondents would recommend this to a friend.

    Pros

    • Comfortable (4)
    • Packs small (4)
    • Lightweight (3)

    Cons

      Best Uses

      • Backpacking (4)
      • Car camping (3)
        • What Is Your Gear Style:
        • Comfort driven (3)
        • Was this a gift?:
        • No (4)

      Reviewed by 4 customers

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      Displaying reviews 1-4

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      May

      21

      2013

       
      5.0

      Perfect 4 season bag for Southern US

      By Opengrave

      from Little Rock, Arkansas

      About Me Environmentalist

      See all my reviews

      Verified Buyer
      Site Member

      Pros

      • Adjustable Hood
      • Comfortable
      • Packs Small
      • Roomy

      Cons

        Best Uses

        • Backpacking
        • Car Camping

        Comments about Big Agnes Bellyache Mountain SL Sleeping Bag:

        Own this and a Feathered Friends Lark UL 10. Love them both. This one is a bit roomier as it is a few inches wider. I like the fact that this one has sew in loops that allow you to secure a bag liner which will add a few degrees of warmth. Great bag that packs small and resists moisture.

        • What Is Your Gear Style:
        • Minimalist
        • Was this a gift?:
        • No

        Bottom Line Yes, I would recommend this to a friend

        Was this review helpful? Yes / No

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        May

        2

        2013

         
        3.0

        Comfortable but Cold

        By Gene Parmesan

        from Albuquerque

        About Me Casual/ Recreational

        See all my reviews

        Verified Buyer
        Site Member

        Pros

        • Comfortable
        • Lightweight
        • Packs Small

        Cons

        • Inaccurate Temp Rating

        Best Uses

        • Backpacking
        • Car Camping

        Comments about Big Agnes Bellyache Mountain SL Sleeping Bag:

        I was pretty cold in this bag at about 32 degrees.

        • What Is Your Gear Style:
        • Comfort Driven
        • Was this a gift?:
        • No

        Bottom Line Yes, I would recommend this to a friend

        Was this review helpful? Yes / No

         - You may also flag this review

        Comment on this review

        Jan

        10

        2013

         
        5.0

        Couldn't believe it!

        By CoreyWittig

        from Pittsburgh, PA

        About Me Casual/ Recreational

        See all my reviews

        Verified Buyer

        Pros

        • Adjustable Hood
        • Comfortable
        • Durable
        • Lightweight
        • Packs Small
        • Roomy
        • Warm

        Cons

        • Zipper Snags Easily

        Best Uses

        • 3 Season Camping
        • Backpacking
        • Cold Conditions

        Comments about Big Agnes Bellyache Mountain SL Sleeping Bag:

        I've only used the sleeping bag once so far, but it was on a night when temps dropped to around 15 Fahrenheit. I was freezing as I climbed into the bag, but (with my liner) I was soon warm and cozy the whole night through. This was definitely a splurge for me, but I know that I'll have the bag for a long time, so it was definitely worth it. Very comfortable, very warm, very roomy.

        • What Is Your Gear Style:
        • Comfort Driven
        • Was this a gift?:
        • No

        Bottom Line Yes, I would recommend this to a friend

        Was this review helpful? Yes / No

         - You may also flag this review

        Comment on this review

        Jan

        8

        2013

        (1 of 1 customers found this review helpful)

         
        5.0

        Great bag

        By quiet guy

        from Encinitas, Ca

        About Me Avid Adventurer

        See all my reviews

        Site Member

        Pros

        • Comfortable
        • Draft Collar
        • Lightweight
        • Packs Small
        • Warm

        Cons

          Best Uses

          • 3 Season Camping
          • Backpacking
          • Car Camping
          • Cold Conditions

          Comments about Big Agnes Bellyache Mountain SL Sleeping Bag:

          I use this in conjunction with an REI Trekker sleeping pad, and have found the Bellyache to be toasty all the way down to 20 degrees F. I haven't slept out in weather colder than that yet. I have slept in my car, which does not vent well, and the down was not at all affected by any of the humidity inside the car. Sleeping in long underwear and a beanie, I have had some of the best night's sleeps I've ever had outdoors. The draft collar seals you in nicely. A feature that is as great as its warmth is its venting. I've slept soundly with the bag unzipped in temperatures as high as the low 50s. It packs small, lofts in a few minutes, and warms quickly. Zipper does catch occasionally, but they have a beefier fabric around the zipper so it's not a big deal. Un-jams easily. I can count the number of feathers that have escaped on one hand (have owned this since Oct 2012). I have not been in truly wet weather yet, so I cannot comment on how well the DownTek works in that environment. I have, however, taken it on winter camping/backpacking trips in Yosemite, Zion, and Death Valley.
          This really is my favorite bag yet.

          Service and delivery comments:

          Delivery and service were prompt. Item arrived in perfect condition. REI almost always exceeds my expectations, and this time was no different.

          • What Is Your Gear Style:
          • Comfort Driven
          • Was this a gift?:
          • No

          Bottom Line Yes, I would recommend this to a friend

          (1 of 1 customers found this review helpful)

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