about once a month we get an email from someone asking us if we could use goretex in their bag. I guess so they can say they got the latest thing? but since the breathability thing only works with a heat source (you) to force the moisture through the one-way permeable goop that is goretex laminate it just don't work. in cold you have too much between you and the inner bag to create water vapour inside the bag and in heat the sun/you/ambient temp don't allow the water vapour to pass between layers outward and would wick too slowly through cordura or ballistic anyway. Plus it's a high tech laminate for thin high tech fabrics, which would make one loosey goose bag.

a few months ago a guy asked me if we could use Nomex on his bag...I said okay..you a fireman? he sez no, I sez oh..you know that stuff is $50+ a yard right, cost way extra to make a flame******ent bag for you, whatcha doin with it? he sez..nuthin, never got another email from him

we'd a made it for him too if he'd really wanted it

how about a chainmail bag? I know a guy.. spensive though