While I almost never carry a bag on my person, I really like my Billingham Hadley Pro to stow gear and keep in my vehicle when traveling. If I feel like doing some photography, I'll grab a camera, lens, and a spare battery. The rest stays behind. I may get the new Hadley Small Pro as a carry bag which has only just been released by Billingham and is, so far, hard to find for sale in the States as the US importer has not brought them in yet. However, I hear KOH Camera can get them for about $240 shipped.