Having spent an hour or so in one of these during Gulf One training, I can honestly say that if you actually went out and bought one of these then you are a couple of sandwiches short of a picnic. These bags are made of NBC suit material as stated above, however the active charcoal layer is next to the skin so you end up black from head to toe. The clear facepiece gets misted up completly unless you have an NBC fan forcing dry air into the bag, I didnt. It was possibly one of the most unpleasant hours I have ever spent.

Johno