Update: Cleaned all the road grime, salt and dirt of it, looks in great shape. Minor surface scratching (picture make it look a lot worse) on the bottom, no cuts or gouges and no seam damage with the exception of one corner. Even though some thread is showing, it is not torn and does not leak. Immersed the corner to see if showed dampness inside - none. Still very happy with my purchase. Reminder that this last trip was mid winter across the northern states with snow, ice, sand, gravel and salt and the bottom was exposed the entire time. Next trip I’ll cut out a piece of 1/8” fiberboard to protect it better. My bumper rack is just the Harbor Freight one. It looks way worse than the bag. Bottom line: excellent product, highly recommended. Two trips coast to coast, hot and cold, no damage and when hosed off, still looks new. Bought it August 2022, one trip there and back across the south, coast to coast; in October, next trip across the northern states and back in Dec/Jan. Cold down to -1F, lots of road salt, gravel and sand, still no damage. Pretty impressed overall. Zipper has held up completely as have the seams. Frankly, I didn’t expect it to do so well. I am very happy with its performance. The bottom that took the most abuse wiped off clean, no tears, nicks or scratches. The only difficult part is because the zipper is so well protected, it was hard to operate in sub freezing weather, hard to open around the two corners. With that said, I’m happy it was like that, kept the water, snow, dirt and everything else out, even in the rains of the Olympic peninsula in December-torrential. Fit well in my harbor freight bumper mounted rack. The rack looks like hell; the bag looks, and still is, in excellent shape. Comment: I made this review more comprehensive because when I was looking for a bag, reviews were mixed on most of the less expensive bags. I bought this one even though it was not expensive figuring at worst, I could throw it away at the end of the trip and not be out much. It has over 14K miles on it now and still working as advertised. Highly recommend.