Look a Retail source for Pertex

uh.. how can it be "windproof" AND "breathable"? The bad wind can't get from the outside in, but good ventilation air can get from the inside out?
And if they are referring to moisture transport and not air permeability, then is it a claim that water vapor can get out, but Ni, O2 etc. can not get in? Pretty amazing claim a la goretex.
Sorry Im jaded, my Marmot Ion is made of this stuff acording to the manufacuturer, and it is like a trash bag with arms. I get tired of these ridiculous claims.

>uh.. how can it be "windproof" AND "breathable"?

As mentioned in other threads, Pertex seems to be a family of products (complete with complaints about the Marmot Ion). However, I have a Montane Aero (size XXL: 3.2 oz) made from Pertex Quantum that is completely windproof (I was in a blizzard where I was knocked over by gusts but didn't feel any colder) and very breathable (I have dried a soaked base layer when breaking out above treeline when I added the Aero to stop the wind). (Edit: commentary on Patagonia Micropuff withdrawn.) These are just some of the extremes that this material has handled, and it works fine for everything in between. (Note: this material is _not_ waterproof, or even water-resistant as claimed; it wets out within five minutes.) I understand that some items labeled "Pertex" don't work as expected, but I consider the Pertex Quantum used in these this product to border on the miraculous.

Oh no, my thread has been hyjacked! Please back to pertex myog fabric retail, thanks.

>Oh no, my thread has been hyjacked! Please back to pertex myog fabric retail, thanks.

Sorry, I just didn't want people to shy away from trying this material because of some vendors' problems. Is this actually Quantum, or the equivalent?

I've inquired about their Pertex on a previous occasion, and it was Pertex 565 – which I think is also known as 'Pertex 4" or 'Pertex Classic' (ie, it is NOT Quantum).

Weights listed online are either 1.6 oz/sq yd or 1.8, depending on the information source.

Brett you WANT a Montane Litespeed Jacket AND Pants! They are the REAL Pertex deal!