I got exactly what I paid for. It came sealed in plastic and it is an authentic military issue goretex bivy sack. It is very spacious and I can tell already it will help add warmth for winter camping. It fits my winter sleep system inside and it isn't as heavy as I thought it would be. The zippers are great and easy to use. It doesn't zip all the way, but a velcro piece on the hood helps to close it.No bug protection but this will help ventilating off some moisture for condensation control. I plan to use this with a tarp in winter. Or in my tent on really cold fall nights where it gets really warm during the day.Great product. I might modify it with a tie out point above my face to keep it off me when I sleep on my back, but it's not that big of a deal. It feels super durable and it can be machine washed, which is also a big plus. If you're looking for a bivy sack for colder nights where bugs won't be a problem, get this. It is also easily modifiable and I've seen people sewin bug netting and tie out points to make a well ventilated one man bivy like tent for warmer weather.I fit a 23 inch wide sleeping pad inside with no problem and there was room to spare. I also stacked my pad on top of my Klymit X-Frame to make sort of an ultralight cot and there was still plenty of room. Maybe I can use a trekking pole collapsed to its smallest size to hold the fabric off my head, but I am a side sleeper mostly so again, not worried about the claustrophobic feel that most if not all bivies have. I will update with pictures later of my setup.