Marmot Never Summer 0 Sleeping Bag

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Marmot Never Summer sleeping bag is great for climbs and treks when subfreezing weather is imminent. Water-resistant 650-fill-power down ensures warmth amid the vagaries of shoulder-season weather.

  • Features

    • Water-repellent, certified 650-fill-power duck down insulation with Down Defender is protected by a durable nylon shell that has a water-repellent finish to shed condensation
    • Down is certified to the Responsible Down Standard (RDS) by Control Union
    • Anatomic wraparound footbox increases insulation and room for your feet to enhance warmth and comfort
    • Nautilus multi-baffle hood envelops your head in warmth; down-filled collar with easy-access drawcord also adds warmth
    • Draft tube backing the full-length, snag-free YKK 2-way zipper prevents cold air from seeping through
    • Fold-down second zipper provides added ventilation and easy access
    • Internal stash pocket; heater pocket in footbox lets you add a heat packet for cozy warmth; heater packets sold separately
    • Includes stuff sack and large 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 Marmot Men's Sleeping Bags
  • Technical Specs

    Best Use

    Backpacking

    Tested Lower Limit

    -4.7 degrees (F) - EN

    Tested Comfort

    9.5 degrees (F) - EN

    Temperature Rating (F)

    0 degrees (F)

    Temperature Rating (C)

    -17 degrees (C)

    Shell

    20-denier mini ripstop nylon

    Zipper Location

    Left

    Insulation Type

    Down

    Water-Resistant Down

    Yes

    Fill

    650-fill-power duck down

    Lining

    20-denier nylon plain weave

    Sleeping Bag Shape

    Mummy

    Stuff Sack Size

    9 x 18 inches

    Stuff Sack Volume

    16.8 liters

    Gender

    Unisex

    Sustainability

    Down certified to the Responsible Down Standard (RDS)

  • Reviews
    97 reviews with an average rating of 4.6 out of 5 stars

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