It looks as if most larger size camera bags are overpriced and they never go on sale. This bag is for the mid-size (about fist size) cameras. It's not meant for either the slim pocket cams or the very large DSLRs. I got it for my Canon SX500.
It's nice looking with simple lines and muted colors inside and out, with a simple rectangular shape. There are two detachable partitions inside which can be quickly rearranged by velcro to re-size the compartments, a very efficient and clever use of space. There is a large zipped pocket along the top of the bag and another pocket inside along the bottom of the top flap. It includes a very easily attachable, long strap which can hook to one or both sides of the unit. It doesn't take up too much space at all but gives you enough room for your mid-size camera, the camera's own strap, battery charger, spare batteries or memory cards, receipts etc.
A drawback is that there is hardly any cushioning at all. If you drop the camera bag on a hard surface it will not protect the contents much. I doubt that it's waterproof as well. However the thin shell makes for a slimmer bag so it can be taken on trips more easily.
Also it's really too expensive at $20 for what it is, but once you go above the slim pocket cameras, all camera bags are pretty much near this price wherever you look.
So it's probably the best mid-size camera bag BB offers. I'm just taking one star off for the cost and the lack of cushioning.