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A waterproof shell for your sleeping bag.  The Alpine Bivy has everything necessary for long nights above tree line. The GORE-TEX Respiration Positive fabric offers complete protection from rain and snow storms without collecting interior condensation. The overlapped zipper opening allows you to breathe freely without letting weather in. A single pole can be used to create overhead space, or it can be left at the trailhead. 

Features:

•  Waterproof/breathable 3-layer GORE-TEX Respiration Positive fabric
•  Durable Hydroseal coated waterproof nylon floor
•  Fully taped seams
•  Single overhead shock-corded Delrin pole
•  No-see-um netting at opening
•  End-opening zipper with wide storm flap
•  Sleeping pad straps (US patent #5,941,264)
•  Sized to fit thicker mats like the Exped DownMat 7 Pump
•  Five stake loops, one guy line loop
•  High-volume foot section
•  Small internal mesh pocket
• Avg. weight w/o pole: 30.7 oz./870 g