one sorta complaint I got is the pack is loud when you're going through brush with it on, I've been thinking about a cover to quiet it down and maybe help shed rain
Steve touched on this in a recent podcast. They've looked at other materials but the downsides of the other materials compared to the 500D cordura they use aren't acceptable to him. They also don't really solve the loudness of the fabric either. Exo, SG and Kifaru all use the 500D cordura so there must not be a better fabric out there.
Ya, the fabric is awesome
I might cone up with a cover when I'm dogging a herd of cows , waiting for a bull to come tend them
I've spent a whole afternoon within 10 to 50 yards of 20 cows in heavy brush, the pack is scary sometimes in the brush, but I don't want to drop it