I bought a pair of Vertx to test, and a pair of MK OMP's as well. I like the Vertx, and love the cargo pocket design, since I hate the look of most cargo pocket pants...
However, my Vertx wore a hole in the back pocket within 2 weeks of wearing them, and nothing ever goes back there but my money clip. Maybe it was something else, but for now, I question the durability and abrasion resistance of the fabric.
I typically wear Carhartt jeans, and I have pairs that are 5 years old or more that have no sign of wear in the same pocket. I'm baffled.