I have used this bivy 5 nights. Very light, very well made. $100 ppd from Alaska. PayPal friends and family. Please email rakenscrape (at) hotmail.com
The top is made from Aspen Green Impetus 1.1 --- 15d x 15d silicone treated fabric that is highly water repellent and breathable. The bottom is Grey 30d x 30d waterproof nylon fabric that is silicone coated.
The tub floor has no seams running vertical to the interface with the top fabric, which means no seam sealing is required in the floor. The hood portion of the Raven is also articulated in the same fashion as the floor for improved movement, room, and comfort. The Raven stands out from the Ptarmigan, in that it is a bit longer, and has a larger foot girth to accommodate larger inflatable pads, such as the Neo air. The other way that it stands apart from the Ptarmigan, is that its "Omni" zip runs continuously from hip, to shoulder, to opposite shoulder, to opposite hip.
Features:
-Articulated hood
-One piece, articulated, seamless floor
-Loop to pull hood fabric off your face
-Accommodates inflatable pads
-Continuous Hip to Hip zipper
-Two way #3 zipper
-30d x 30d Bottom (Grey)
-Impetus 1.1 Top (Aspen Green)
Specifications: Size: 76" chest girth, 60" foot girth, 92" length.
Will fit long winter bags. Weight: 6 ounces for bivy, 8.2 ounces with stuff sack
Price new: $135
Views of hood section zipped up.