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Cfm of New Gore Tex Pro and Gore-tex with the extra PU film? Compared to EVENT?

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Michael K BPL Member
PostedJan 24, 2015 at 8:25 pm

1) Does anyone know the cfm of the new gore-tex fabrics like the "gore-tex pro" shown in the video below? Is it more or less breathable than EVENT?
https://www.youtube.com/watch?v=_PfR2dRe4T4

2) Does only the "gore-tex pro" still have the absence of the PU non-air permeable layer to guard against oils or since after this video are the new "gore-tex" and "Gore-Tex active" now all significantly more breathable than the older versions like the new "gore-tex pro" because they no longer use this non-air permeable film?

3) Are these cfm accurate? Event is usually .1 cfm and neoshell is .5 cfm?

Basically, for backpacking and hiking I'm very happy with neoshell, but I'm looking for something that I'll use for fishing and water sports where I will be facing more immersion, kneeling in water, and sitting in water etc.(like a puddle on a seat) where I feel I may want more waterproofness than neoshell (10,000 waterproof rating)while still maximizing breathability when I'm active (paddling hard etc.). At this point, EVENT seems like the best option with its higher waterproof rating than neoshell, unless the new gore-tex is similarly or more breathable than than EVENT.

PostedJan 25, 2015 at 5:43 am

1) 0,15 to 0,3 cfm
2) yes. Still, despite the PU-film and being non-airpermeable, Active is by some experienced as more breathable due to thinner construction.
3) NeoShell around 0,5 (it probably differs from laminate to laminate); eVent between 0,1 and 0,5.

Michael K BPL Member
PostedJan 25, 2015 at 2:50 pm

Woubeir thanks for the information. It's interesting that some experience the "active" to be more beathable than the "pro" even though only the pro is actually air permeable because of no air permeable film + Gore-Tex also claims the Active is more air permeable. I suppose that for some people like Gore-Tex, perhaps breathability refers to ability to pass vapor, but I would assume the more air permeable a garment, the faster it would pass vapor? Am I missing something?

http://www.gore-tex.com/remote/Satellite/content/outerwear-technologies#sec-outerwear-technologies

PostedFeb 12, 2015 at 8:29 am

Missed this so therefor my late reply: I think it is more complicated then just saying "it's air-permeable so automatically more breathable". While Active is non-AP, it's thinner, the facefabrics have to be lighter and could perhaps pass vapour more easily, the backer is heat-laminated directly to the WP/B-layer, …
So breathability is not depended on one thing, but depends on a combination of things.

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