I don't know if you would mind a backpack, but I love my Atlas Athlete camera backpack. It doesn't look like a camera bag at all. It looks like a ordinary hiking pack. It can compress down to 20L or so if you don't need to carry much. It can expand up to 40L if you need to carry clothes, etc as well. It is the most comfortable pack I've tried so far. I use it for hiking, and I've already been able to go further with this pack than I have with any other camera backpack I've had so far.
The Atlas packs come in different torso sizes, and now you can pick different hipbelts as well.
The camera core is adjustable in size, and the small configuration will easily carry what you listed.
It is rear-opening, so no one can get to your gear while you have it on.
Look up Atlaspacks.com.
Very nice concept and a nice looking backpack as well! Way over my budget though!











