Never used ID Salathe bivy. Discontinued, and that’s a shame. Has a wire stiffener to keep bivy off face, single tie-down point, and a mesh cover for those warmer days. Completely waterproof, and weighing in at just over 2 lbs, it’s perfect for hikers and mountaineers. Feel free to request additional info/pics. The item “NWOT Integral Designs Salathe Bivy Sack Olive, Long (6’6)” is in sale since Wednesday, October 14, 2015. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Tents & Canopies\Other Tents & Canopies”. The seller is “larquonnen” and is located in San Diego, California. This item can be shipped to United States.