RAGwrote a review of Gore Bike Wear Xenon Race Bib Tight Shorts - Men's on January 11, 2017
Familiarity: I've put it through the wringer
The seams at the belly started coming apart after only a few rides. The binding tape stitching was coming undone in 2 places, and eventually I suspect they would unravel and fail. The pad is pretty comfortable and the legs stay put well, so after several 3+ hour rides I decided I like them enough to do some darning. Perhaps the stitch failing would have never progressed and been a non-issue. Mine have red stitching and the newer(?) "2.0" one for sale has black stitching, so perhaps this issue has been corrected - though another reviewer seems to have had the same problem.
The pad also felt scratchy on my bum at first, but after 3 or 4 washings (and wearings), it doesn't anymore. It's some weird material that "smoothed" out, though the first ride wasn't terribly comfortable. I really like my Gore bibs, but they need better QC on their stitching.