Outdoor Research Advanced Bivy Sack

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The Outdoor Research Advanced bivy sack offers full-on weather protection and has a commodious design featuring a generous footprint for those who prefer a little more wiggle room .

  • Features

    • 2 shockcorded Delrin® poles allow the bivy to open in several different positions from wide open to awning style
    • 3-layer Gore-Tex® Respiration Positive™ laminate fabric was created just for sleep systems—it's both vapor- and gas-permeable
    • Durable and waterproof Hydroseal® coated nylon floor; fully taped seams ensure waterproof protection
    • Removable, tightly woven no-see-um mesh provides lightweight, chemical-free bug protection that doesn't interfere with visibility; height is 20 in.
    • End-opening zipper with a wide storm flap allows easy entry and exit without sacrificing waterproofness
    • High-volume foot section with zippered vent allows sleeping bag to maintain full loft for optimal warmth around feet; height is 14.5 in.
    • Footprint is sized to fit thick sleeping pads for increased comfort
    • Straps keep your sleeping pad in place, preventing the bivy from rolling over during sleep
    • Small mesh pocket holds nighttime essentials
    • 5 stake loops and 3 guyline loops provide ample anchor points
    • Includes Delrin poles and stuff sack
    • Shoulder girth is 52 in.


    View all Outdoor Research Bivy Sacks
  • Technical Specs

    Best Use




    Sleeping Capacity



    2 lbs. 7 oz.

    Packed Size

    4 x 15.5 inches

    Bivy Length

    87 inches

    Shoulder Width

    26 inches

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    42 reviews with an average rating of 4.5 out of 5 stars

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