I like camera bags. Family has said I am with camera bags like some people are with shoes. Based on the closet, and the shelves and beside the chair, they're right. I am a huge fan of the bags from Think Tank. There are many fine manufacturers, but when I add up all the kit I have spent hard earned buckolas on, most of it is Think Tank gear. From belt kits, to airport sized backpacks, to little bags to big bags, I tend to use my Think Tank bags as "go bags" - pack what I need for the gig / assignment / event and go.
After being robbed of my gear in Barcelona in 2011, I am VERY SENSITIVE regarding camera bags that look like camera bags. Enter the Retrospective series from Think Tank. Recently I had a project / assignment to shoot a Polo match. I knew I was going to be moving around a lot, that I would be using mostly long lenses and a monopod. So I went out and invested in the Retrospective 20.
It looks like a messenger style bag. It has no visible logos. It has a great strap that is comfortable all day and that is long enough that I can sling it across my body or hang it from a shoulder. It's quick to get into, has good padding and its size belies just how much kit you can get in it. The giant bellows pocket on the front is really deceiving. For my Polo work I carried in this relatively small and highly innocuous bag the following gear;
The bag was comfortable all day and held my gear safely and securely. The front flap velcros closed with good sized velcro patches and they have silencers sewn on so you can open the bag with no noise at all.
The point is that it can be accessed quickly, holds a camera with a long zoom or prime attached and carries well.
As kind of a useful aside, Think Tank's material that lines their bags is 18% grey so it's also your portable grey card. We all know that when you really need a grey card, you don't have one, but with Think Tank you do.