> Waist straps aren't needed if you supply your own belt.

True. My interest is in a fanny pack, not one that I loop onto my trouser belt, so that I can move it around my body and can take it off quickly when I sit. I can do that with other gear that gives me a strap and quick release buckles. The issue is whether the deployment bag then works well as a fanny pack or whether it loses its shape and functionality when cinched around my waist instead of being hung from a shoulder.

It looks like the proteus bag has a wider webbing where it attaches to the bag, unlike the Molle and the CountyComm EOD. I suspect the Molle and EOD would cinch and bind at the belt.