Sea to Summit Spark SpI Sleeping Bag

Item #866773
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Packing down to the size of a 1-liter water bottle, this ultralight bag balances size, weight and warmth to make it an excellent choice for summertime backpacking, cycle touring and mountaineering.

  • Features

    • High-loft, premium 850-fill-power European goose down offers superb warmth with minimal weight; Ultra-Dry Down™ water-repellent treatment protects down from moisture
    • Ultra-Dry Down is a water-repellent polymer treatment applied to the down; Ultra-Dry Down retains 60% more loft and absorbs 30% less moisture than untreated down
    • With a European Norm (EN) lower-limit rating of 46°F, the Sea to Summit Spark SpI will help keep you warm on 3-season backpacking adventures in warm weather
    • You can also use the Spark Sp I as a booster bag by slipping it inside another sleeping bag to add warmth
    • Ultralight 10-denier Pertex® Quantum® fabric with a durable water repellent treatment sheds moisture
    • Soft 15-denier nylon fabric lines the sleeping bag for excellent comfort next to skin
    • Left-side 1/3-length zipper saves weight over a full-length zipper
    • Compresses to the size of a grapefruit

    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 Sea to Summit Men's Sleeping Bags

  • Technical Specs

    Best Use

    Backpacking

    Mountaineering

    Tested Lower Limit

    46 degrees (F) - EN

    Tested Comfort

    54 degrees (F) - EN

    Temperature Rating (F)

    46 degrees (F)

    Temperature Rating (C)

    8 degrees (C)

    Ultralight

    Yes

    Shell

    Ripstop nylon

    Zipper Location

    Left

    Insulation Type

    Down

    Water-Resistant Down

    Yes

    Fill

    850-fill goose down

    Lining

    Nylon

    Sleeping Bag Shape

    Mummy

    Stuff Sack Size

    4 x 9 inches

    Stuff Sack Volume

    2.5 liters

    Compressed Volume

    1.55 liters

    Gender

    Unisex

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