: eVent fabric has been tested by the US Army and is superior to
: Goretex for breathability.

: See http://www.verber.com/mark/outdoors/gear/breathability.pdf

I have an eVent rain jacket - from my experience it's no match for Goretex for in the field abuse. The material eVent is not rugged nor does it feel any more 'breathable' than Gore Tex. And there is the issue of time in the field