The Bessa III folder up is fairly compact and I rarely need room for more than it plus a couple of lens hoods (I have two, usually one fitted with an orange filter and the other without), and a couple of extra rolls of film. So what bag I use depends more on what other junk I need to carry about.
Lately, I've been using the Lowepro Teraclime 100 fitted with a camera pocket from the A&A ACAM 7100, and I've also been using the Lowepro Passport Sling for when I need a bit more space for other junk (like a place to stuff my jacket if it gets too warm, or a second camera, or the iPad mini, or whatever).
I saw someone asked about filters. I bought two lens hoods and both Green and Yellow-Orange B+W MRC filters in 40.5mm size. The filter fits into the lens hood and snaps on and off quickly this way ... I usually have one hood fitted with a filter and the other without. You can't close the camera with a 58mm filter on the lens so I find this much more convenient for filter use, albeit a trifle costly (lens hoods cost $70 US each). (I actually might buy a third so that I have a permanent setup of one clear shade and two filtered shades at all times when I'm out shooting.)
G