Great to see everyone's favourite bags! I mostly use a Billingham Hadley small when my main purpose is to go on a photo walk. It fits my X-T1 and a couple of lenses perfectly and is lightweight and inconspicuous.
For travel I use a Chrome Niko backpack which fits all camera gear and travel accessories. The dividers inside aren't very helpful though...too big for mirrorless. I have high hopes for the Brevite backpack.
Has anyone used an ONA Prince Street? I wonder if you could fit in A4 paper as I'm looking for a combined work and camera bag (X-T1, plus 1 extra lens and work papers, sunnies, keys, wallet, etc). I'm fairly certain the Brixton would work, but am worried it's too big and heavy...