I've got a big bike trip coming up and I have two Ortlieb panniers. I gutted the organizational insert because it weighed a lot.
If I wanted to pack two or three simple drawstring stuff sacks to keep my cooking gear, first aid, and tent repair stuff organized instead of having it slosh around in the Ortlieb, what are my lightest options?
Is Cuben Fiber the lightest, and if so, is there a cheaper alternative that comes close? Is there a very durable mesh stuff sack that gets the weight down there?
These are purely organizational, they don't need to be water resistant at all. However, since they're gonna have things like a metal pot in them, they shouldn't be too flimsy.

