Originally Posted by
Tourist in MSN
I also have a Ortlieb duffel that I put on top of the rear panniers, medium size, I think 31 liters. Length of duffel is about the width of the outside of the rear panniers.
If I did not use Ortliebs, I might use a dry bag for my sleeping bag, and maybe one for some clothes. I use a very small dry bag for first aid kit, meds, things like that. Another very small dry bag for electronics. But other than that, just about everything I have could get wet without ruining a trip. I still would use plastic bags for a lot of things, but I would not put a lot of stuff in drybags.

+1
Why not put all of those things in one larger bag?
Blue bag-tent/rainfly, small graybag--pillow, yellow bag--sleeping bag, other small gray bag--sil nylon ground cloth/tarp, orange bag--Thermarest pad. Sometimes the tent poles also go in bag.
It is held to the rear rack with a couple of GOOD bungee cords.