Event vs. Gore-Tex

That comparison is not terribly helpful. The appearance of condensation isn't just limited by rate of vapor flow... it's also limited by how quickly (or slowly) water condenses. It could well be that the vapor flows through eVent at a faster rate but the condensation shows up at the same time because the vapor hits the glass fast ENOUGH that they condense at roughly the same time. If eVent does indeed breathe more faster, this is a test that would superficially level that playing field. I own Goretex stuff and haven't tried eVent (although I would like to). I don't have a horse in this race. I just think it's crap that they try to prove a point with poor experiments meant to take advantage of the ignorant. Show me some numbers, none of this sixth grade science fair nonsense.

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By: D.Chu December 7, 2010

The whole point of eVent is that it's vapour permeable. Meaning that while Gore Tex and eVent perform roughly the same in lab testing, where the conditions are unrealistically static, eVent works better real life because wind and airflow pull much more water off of the skin than simply diffusion, which is the only way water vapour leaves the body with Gore Tex. Check out the Polartec Dynamic MVTR test.

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By: James Jenden May 4, 2011