REI Co-op Expedition Sleeping Bag

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Designed for mountaineering, this cold-weather mummy bag features water-repellent down insulation, a waterproof/breathable shell and a double zipper system for temperature regulation.

  • Features

    • With a temperature rating of -20°F, this bag is suitable for 4-season use
    • Unique double zipper system allows you to adjust comfort as needed—fully close both zippers to increase warmth, open inner zipper to decrease warmth
    • Water-repellent 700-fill-power duck down offers superior loft and warmth
    • REI double-protection design combines a polymer-coated down fill with waterproof/breathable ripstop nylon all around; shell also has a durable water repellent finish
    • REI in-the-round design puts vertical baffles in side walls to wrap you in warmth and create a better fit than bags that use only horizontal baffles
    • Contoured hood, draft collar and full-length draft tubes all work to keep warmth in
    • Differentiated hood and neck drawcords simplify adjustments; antisnag zippers work smoothly
    • Pass-through pocket has zippers on the outside and the inside to provide easy access to your stashed essentials
    • The REI Expedition Sleeping Bag includes a nylon stuff sack and a large cotton storage bag

    Imported.

    View all REI Co-op Men's Sleeping Bags
  • Technical Specs

    Best Use

    Mountaineering

    Tested Lower Limit

    Unavailable

    Tested Comfort

    Unavailable

    Temperature Rating (F)

    -20 degrees (F)

    Temperature Rating (C)

    -29 degrees (C)

    Shell

    Ripstop nylon

    Zipper Location

    Left

    Insulation Type

    Down

    Water-Resistant Down

    Yes

    Fill

    700-fill duck down

    Lining

    Nylon taffeta

    Sleeping Bag Shape

    Mummy

    Stuff Sack Size

    9 x 20 inches

    Stuff Sack Volume

    20 liters

    Gender

    Unisex

    Sustainability

    Down certified to the Responsible Down Standard (RDS)

  • Reviews
    14 reviews with an average rating of 4.4 out of 5 stars

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