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This lightweight backpacking bag is insulated with 700-fill duck-down that has been specially treated to resist moisture so you can sleep easy in wet and humid climates.

  • Features

    • Regular down takes on water and is very difficult to dry; DriDown proprietary process treats each individual down plume with a hydrophobic finish
    • With the duck down now resistant to water, the insulation maintains its loft and stays dry 7 times longer than untreated down
    • It also performs better in high humidity than regular down, and in case it accidentally gets wet, it will dry out faster, too
    • Lightweight yet durable 30-denier micro-ripstop polyester shell and comfortable, moisture-wicking polyester lining warms up fast
    • Baffle construction keeps down from migrating, eliminating cold spots
    • Full-length 2-way, double sliding zipper allows easy venting; locking slider is backed by wide, antisnag binding tape
    • Snag-free zipper tracks prevent the dreaded stuck zipper by creating a barrier between the lining and the zipper track
    • Fully insulated draft tube backing the zipper keeps body heat in and cold air out
    • Ergonomic, nonrestrictive hood cradles your head in warmth; hood features differentiated drawcords that make fit adjustments easy, even in the dark
    • Roomy, ergonomically shaped footbox enhances comfort and warmth of feet
    • Sierra Designs Zissou 12°F duck down sleeping bag comes with stuff sack and storage bag
    • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags

    Imported.

    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 Sierra Designs Men's Sleeping Bags
  • Technical Specs

    Best Use

    Backpacking

    Tested Lower Limit

    12 degrees (F) - EN

    Tested Comfort

    24 degrees (F) - EN

    Temperature Rating (F)

    12 degrees (F)

    Temperature Rating (C)

    -11 degrees (C)

    Shell

    Ripstop polyester

    Zipper Location

    Left

    Insulation Type

    Down

    Water-Resistant Down

    Yes

    Fill

    700-fill duck down

    Lining

    Polyester

    Sleeping Bag Shape

    Mummy

    Stuff Sack Size

    8 x 16 inches

    Stuff Sack Volume

    14 liters

    Gender

    Unisex

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