REI Co-op Halo Sleeping Bag

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Our premium warm-weather goose down bag offers the perfect of balance low weight, high-quality materials and top performance—great for backpackers and ultralight adventurers alike.

  • Features

    • Features premium 750-fill-power goose down insulation, a downproof, partially recycled ripstop polyester shell and lining
    • Exclusive REI Down Fill Calculator optimizes the amount of down per baffle for the most warmth with the least amount of down
    • In-the-round pattern wraps vertical baffles around perimeter of sleeping bag, from head to foot, creating a 3-dimensional bag that wraps you in warmth
    • Contoured hood, face muffler, trapezoidal foot box, full-length antisnag zipper, and full-length draft tube with ground-level seams all keep body heat in, cold air out
    • External chest pocket keeps essentials such as headlamp, watch and glasses right at hand and easy to find in the dark
    • Differentiated drawcords (1 round, 1 flat) let you adjust hood and neck easily in the dark
    • Pad loops provide attachment points to keep your sleeping bag and pad together, so you needn't worry about rolling off onto the cold ground (straps sold separately)
    • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags
    • Comes with stuff sack and 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 Men's Sleeping Bags
  • Technical Specs

    Best Use

    Backpacking

    Tested Lower Limit

    37 degrees (F) - EN

    Tested Comfort

    49 degrees (F) - EN

    Temperature Rating (F)

    41 degrees (F)

    Temperature Rating (C)

    5 degrees (C)

    Shell

    Ripstop polyester

    Insulation Type

    Down

    Fill

    750-fill goose down

    Lining

    Ripstop polyester

    Sleeping Bag Shape

    Mummy

    Stuff Sack Size

    7.5 x 15 inches

    Stuff Sack Volume

    10.9 liter

    Gender

    Men's

  • Reviews
    22 reviews with an average rating of 3.9 out of 5 stars

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