A crinkly membrane wasn't the source of the noise complaint regarding the o.g. EVII Fanatic Jackets, it was a noisier berber fleece shell. They addressed it. I'm sure product release videos talking about that are still out there. That said, those gen1 EVII fanatic jackets weren't "loud" imo.
The quietest Fanatic was prior to EVII.
The membrane on my Forest Stratus bibs, now it surprises you. You definitely hear it on the move, but it's not something I notice when on stand.
Good discussion.
I'm looking forward to seeing what Scentlok has come up with and hope at these year's end prices it stands up to the "premium" stuff. I have had good luck with the brand.