First of all, none of these are meant to be worn in conditions with liquid water, so that isn’t very relevant; they all can shrug off falling snow indefinitely. Secondly, most of them don’t have permeable membranes like gore Tex. It isn’t very relevant in a winter parka. This one has dry vent which is basically just canvas. It doesn’t clog like gore Tex can. But again, even fully clogged goretex is fine in a jacket like this.

My mcmurdo is quite old and still functions perfectly.