Looked like a great design to put on top of my cot to keep bugs off. It does this. I am six feet tall and due to the design of the ends, this setup is way too short for me. The hoops are great to open up but a real pain to fold back together. I purchased the fly but never used it. I really like Catoma's designs, but this one has a great idea but the average soldier these days must be really short. Waterproof problems and condensation already covered. Full review
The Catoma EBNS (military version) has some good qualities about it. If you're looking for something more than a bivy sack and don't mind the weight, this is an option you might want to look at. Best used on a cot, under a much larger shelter for anything over a week or in wet climate. There are two versions of the Catoma EBNS. The civilian and military/tactical versions. Both are similar in design, I have the military/tactical version of the Catoma EBNS. Setup is a breeze. It's dummy proof. But… Full review
Catoma Outdoor designs and builds lightweight tents for backpacking and outdoor use.