I recently saw a good deal on an e-vent rain jacket, and the salesman told me that it is the most breathable waterproof fabric on the market. But I noticed that several manufacturers of e-vent products (jackets and emergency bivies) only claim that its water resistant (they say it "resists light rain or snow but not sustained downpours," or words to that effect).
So, what's the scoop? I know that many fabrics will eventually wet through, but is e-vent really better or worse than others? How does e-vent compare to my trusty old Frog Toggs for breathability and water resistance under sustained rain?
Stickman