I originally purchased the Ibera non-waterproof panniers which I really loved and had a lot of great pockets and features, but ultimately they were non-waterproof and having to put the cover over it, on and off, became a bit of a pain, so I upgraded to these bad boys.I will preface this by saying I have not taken them out on a big bikepacking trip yet, but I fully intend to and as far as I can tell they are super sturdy, hold up well, and can hold a boat load of stuff in them. A great alternative to the fancier Thule or Ortlieb panniers, better looking in my opinion, and the quick mount feature on the ibera rack really makes them outstanding.The last test is just durability over time, we'll see how these hold up as I take them on big trips throughout the years.