After nearly spending the night on the North slope packing out caribou from over 5 miles out I decided I needed 2 things. A new sleeping bag and a bivy sack. I decided to go with a Ti-Goat Ptarmigan bivy after days of reviews. I'm a big MSR guy, got about 1 of everything from em, but it pretty much boiled down to Integral Designs and Ti-Goat, price wasn't the issue, but after many reviews of both the Ptarmigan bivy owners were really happy with this product. Looks like the quality control on this 2 man operation with a USA made product is just awesome, just hope mine gets in in a week or 2, gonna put it thru the test in the mountains in Seward before the snow hits too hard. Anyways I made my order this am, got the bug hood too. Just checkin in to see if anyone else uses the Ti Goat or other bivy sacks, and how it works for ya. at a few ounces for a emergency shelter with bag, looks like good insurance.