Hmmm... thank you all for your comments & suggestions. I read parts of pasopia's link, and actually just yesterday I surfed Ortlieb's webpages and to my surprise noticed that they still use PVC for their "Classic" panniers.

To me physical items, like the panniers, are not just physical items with a size, color, fabric, weight etc. They also carry with them a "feel", or what in spiritual terms might be called an "energy", which, as I experience it, is partly composed of what goes into making the item. That could be people's intention when making the item, how making the item affects the manufacturing workers, how is the nature affected, overall working conditions, the materials themselves etc. I often sense it as an emotional or mental "imprint" that is associated with the item. And to me it's just not very pleasant to buy or use items that carry with them a less than positive imprint. So I'd rather not use PVC but hope to find an overall pannier concept that is pleasant to be with on all levels.

@ mr geeker: Took a look at the axiom bags - they are a bit too small, though, but thanks for the link.

It may also be relevant to say that I will be going a very long distance with the bags so they just need to last ...

Buying second hand is an option.

So, to sum up: I'd still appreciate suggestions for environmentally and "production people" friendly panniers that are very durable, water and moisture proof, preferably in light colors and for the rear panniers at a volume of no less than 40 liters. Might they be found e.g. second hand?

Again, thanks for looking :-)

Jesper