REI Co-op Serrana 20 Sleeping Bag - Women's

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With room in the hips and extra 600-fill-power down insulation in critical heat-loss areas, the 3-season REI Co-op Serrana 20 women's sleeping bag offers multiposition sleepers the comfort they need.

  • Features

    • With a European Norm (EN) comfort rating of 20°F, this bag is suitable for 3-season use
    • Designed to fit a woman's body, this bag offers increased room at hips, decreased room at shoulders and extra insulation in critical heat-loss areas
    • Water-repellent 600-fill-power duck down offers excellent loft and warmth in damp conditions—and it's certified to the Responsible Down Standard (RDS) and bluesign® approved
    • Ripstop nylon shell also features a durable water repellent (DWR) finish to further protect the down fill
    • Trapezoidal foot box provides foot comfort and toe box baffle specifically positions down to insure foot warmth
    • Relaxed shoulder-to-hip cut works well for multiposition sleepers
    • Contoured hood, insulated face muffler and full-length draft tube all work to keep warmth in
    • Differentiated hood and neck drawcords simplify adjustments; antisnag zipper works smoothly
    • Bag has a stash pocket under the collar
    • Pad loops let you strap the bag to your sleeping pad (straps and pad sold separately)
    • Most REI backpacking bags can be zipped to other REI backpacking bags; women's bags zip on the right, unisex on the left
    • Includes a nylon stuff sack and a large cotton storage bag

    Imported.

    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 REI Co-op Women's Sleeping Bags
  • Technical Specs

    Best Use

    Backpacking

    Tested Lower Limit

    7 degrees (F) - EN

    Tested Comfort

    20 degrees (F) - EN

    Temperature Rating (F)

    19 degrees (F)

    Temperature Rating (C)

    -7 degrees (C)

    Shell

    30-denier ripstop nylon

    Zipper Location

    Right

    Insulation Type

    Down

    Water-Resistant Down

    Yes

    Fill

    600-fill-power duck down (RDS certified and bluesign® approved)

    Lining

    50-denier polyester taffeta

    Sleeping Bag Shape

    Mummy

    Stuff Sack Size

    8 x 18 inches

    Gender

    Women's

    Sustainability

    Down certified to the Responsible Down Standard (RDS)

    Contains materials that meet the bluesign® criteria

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