However I have realized that one-compartment panniers (like Ortlieb) have been a great annoyance for me: I just use too much time looking for stuff. Now somebody might say: Put your stuff into colored bags. Yes, but that is still inconvenient. This is why my next bags are going to be some Arkels with many pockets. And here is the turning point: I only do touring during summer time. In 30 days of touring I might have 2 rainy days. This is why - for me at least - the Ortlieb PVC material is waay overkill for me.