I've done a fair bit of googling but haven't come up with much.
My Ortlieb Roller Plus panniers have maybe 20,000km of hard kilometers on them with scorching sun and torrential rains but they show almost no wear and look fantastic. They used to completely impervious to water but now when it rains they get damp. Like I said they look great and I can't see any holes in the material or the inside coating.
Has anyone ever experienced this? Besides spending a couple hundred dollars for new panniers do you know what to do?
I wondered about spraying the outside of the bag with some type of water repellent. Any ideas on how this would work or what to use?