After upgrading my camera gear I needed a new bag to store it all and travel with it. I currently do a lot of work that forces me to jump on planes and fly to various spots. I wanted a bag that could fit most of what I own but retain a small footprint at the same time. I also did not want a backpack. I settled on the F-2 because of it's construction, which did not disapoint. The bag feels like it will withstand a lot of wear and tear. There are pockets galore, and they are easily accessible. The strap feels great on my shoulder or slung across my upper body. My only complaint is that it is a bit bulky for daily use, especially if worn over the hip. It sticks out a bit too much to walk around with in crowded areas. Even though the clasps are metal snaps, it is quick to open and close and feels secure. I'm not worried about things falling out. I can easily fit my 30D with 18-55 attached, 70-200/4, 85/1.8, 50/1.8 and 10-20, or for go the 10-20 and put my 580 in there instead. I was hoping to be able to put two bodies in, which I can, but each without a lens attached.