My Grip bag is holding it's own quite nicely, and it gets abused often. I had a revolution bag, and it held up well, but this bag has by far been way superior to anything else that I have had on my back. Typically I was going through bags about every 18-24 months, and this one is about 14 months so far with no signs of deterioration at all. So to me that is a MAJOR change in bags to revolutionize it.