I am not a scientist and don't pretend to be one. What I am is a mountaineer and hillwalker of over 4 decades and speak from experience. I have experience of the UK, Alps, dolomites, baltics, Iceland and Ireland in tents, bivies and snowholes, walking and ice climbing and I know and trust the gear I use.
If the stuff was crap I wouldn't use it. My laboratory is real use. Breathable fabrics work.
Post last edited on 27/08/2017 00:44:14
------------- Hypercamp Alaska
Vango Force 10 mk3
Vango F10 Helium 1
Coleman Cobra Pro 3
Coleman Cobra 2
Naturehike Star River 2
Eureka! Solitaire
Dutch army goretex bivvy bag
I'm just after some scientific data because even this link
https://www.ukclimbing.com/articles/page.php?id=4556
explains some of the pit falls, but the thing is we all sweat at different rates.
At some point we may be sweating more than can pass through any membrane or fabric no matter how big the holes are, simply because even if I wear just a t-shirt which is definitely not waterproof, when I get back from walking my t-shirt is sopping wet with sweat.
I dont need to list off how many years or where I have been walking to prove this point because its something many people can relate too if they have walked at a reasonable pace in a variety of conditions.
A t shirt is a bad example. It wicks rather than breathes and is next to your skin.
You keep wearing your bin bags and I will keep wearing goretex. I know which works for me.
Oh, and read this article. It might set you straight and it explains how wearing a sweater in winter is going to chill you.
Post last edited on 27/08/2017 08:24:47UKC article
Post last edited on 27/08/2017 08:25:38
------------- Hypercamp Alaska
Vango Force 10 mk3
Vango F10 Helium 1
Coleman Cobra Pro 3
Coleman Cobra 2
Naturehike Star River 2
Eureka! Solitaire
Dutch army goretex bivvy bag
Clothes are not alive they dont breathe and clothes which are claimed to wick dont know which side the outside of the clothing is.
All clothing will have a Moisture Vapor Transmission Rate which is a measure of of how much vapor can be transmitted through it.
As sweat is different to water, first the industry needs to agree an industry standard for the makeup of sweat and then produce a MVTR for their items of clothing as a performance rating.
At the moment there's nothing so anyone can pretty much make any claim they like.
------------- Hypercamp Alaska
Vango Force 10 mk3
Vango F10 Helium 1
Coleman Cobra Pro 3
Coleman Cobra 2
Naturehike Star River 2
Eureka! Solitaire
Dutch army goretex bivvy bag