http://www.dqeready.com/productdetail.aspx?p=538
I could be wrong, but isnt Provent a WPB fabric? Now, i cant really imagine wanting to wear this suit in public, but its an interesting idea. The Kappler website says 5.4kg for 25 of them. So thats 216 grams, or 7.6oz for a whole suit.
http://www.kappler.com/index.php/products/provent7000
The second style there looks about right. I mean, even if you cut the legs off and hemmed it up. Its got a zipper, its got elastic cuffs, wrist, and hood opening. And it comes in three different weights.
Am i way off about provent? Cant find much info about it online.
Maybe somebody in the medical profession can chime in.

