Description of Outdoor Research Alpine Bivy This 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 (pat. #5,941,264) Sized to fit thicker mats like the Exped DownMat™ 7 Five stake loops, one guy line loop High-volume foot section Small internal mesh pocket Avg. weight: 32.0 oz./907 g Avg. weight w/o pole: 30.7 oz./870 g Length: 84 in./214 cm Peak height: 20 in./50 cm Height at feet: 14.5 in./37 cm Width at shoulders: 26 in./66 cm Width at feet: 19 in./49 cm