Originally Posted by ShartRate

I'm hoping to buy some large panniers soon for a grocery getter/someday touring bike. Right now I'm between Ortlieb rollers and Ironweed bags (Ironweed is produced local to me so that is a bonus).
A big plus to the Ortlieb bags are their large capacity, but can anyone tell me if their published volume includes the rolled portion of the bag? This is ambiguous to me so far but would make a big difference in my decision.