Outdoor Research Advanced Bivy Sack

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On Sale: $255.9620% Off. Regularly: $319.95Sale Ends Wednesday 12/03/2014

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Outdoor Research Advanced Bivy Sack

Outdoor Research Advanced Bivy Sack - Many folks who use bivy sacks for ultralight travel have trouble sleeping with fabric directly on their face. If one of these is you, then the Outdoor Research Advanced Bivy is for you. The most exciting innovation in the OR Advanced Bivy is the combination of a pole over the top at the shoulder position, with a circumferential pole around the head of the sack (pat. #5,458,146). The circumferential pole turns the entire head section of the sack into an awning, so the zipper can be wide open, with the lower edge of the roof several inches off the ground. Rain or snow runs down the roof, off the wide storm flap and onto the ground. If the wind kicks up, the zipper opening can be reduced to prevent moisture blowing in. By adjusting the pole positions on the inside of the bivy, you can vary the size of the opening from roughly a 45° angle to full-on stargazing model—all with the removeable no-see-um netting in place to keep bugs out. Extra room under the roof is also a great place to store boots, etc., to keep them dry. Sleeping pad straps are included.

Outdoor Research Advanced Bivy Sack Key Features

  • Waterproof/breathable 3-layer Gore-Tex® Respiration Positive™ fabric
  • Fully taped seams
  • Removable no-see-um netting covers opening
  • Sleeping pad straps (pat. #5,941,264)
  • Five stake loops, three guy line loops
  • Small internal mesh pocket
  • Durable Hydroseal® coated waterproof nylon floor
  • Two shock-corded Delrin poles, overhead and circumferential (Dual Delrin pole system pat. #4,458,145)
  • End-opening zipper with wide storm flap
  • Sized to fit thicker mats like the Exped DownMat™ 7
  • High-volume foot section with zippered vent

Outdoor Research Advanced Bivy Sack Specifications

Weight 39.0 oz
Weight w/o pole 34.0 oz
Length 87"
Peak height 20"
Height at feet 14.5"
Width at shoulders 26"
Width at feet 19"