review by Carl on 5/17/2019

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The bivy keeps you warm and does breathe more than other emergency bivy bags. But the size is too small and tight to add a light sleeping bag for cold weather use, AND the zipper does not go down far enough to allow easy entry. This is a problem for big guys---anyone over 6 feet tall and/or weighing more than 200 pounds. I don't think I could do the WORM dance with a Primaloft parka on in January and still get inside the bivy and be able to zip it up. Make the zipper 5 feet long---like 3/4 long around the bag. Make the circumference in the chest area larger----like a real 72 to 80 inches. That would mean a width of 36 to 40 inches, which would allow a big guy to wear his insulated jacket in the bivy in a real emergency in snow or winter conditions. Finally, they have an olive green model for military use, but I still question the durability of the fabric. I don't see the bivy making it past 1 season of use--especially in rocky or sandy terrain. For $50, I would think this bag should last several years. Otherwise, why not spend a bit more, and get a military surplus Goretex bivy for $75 to $100, and that will have the full length zipper, breathe well, be totally waterproof, and be very durable---with a lifetime of use!