This bag is large. Probably just on the border of being too big. I can just barely fit mine into overhead compartments on airplanes. I can fit a ton of stuff into it: camera body w/50mm attached, fisheye lens, zoom lens, 3 Sunpak 622’s and 3 batteries for them, 2 Sunpak 555’s, extra batteries and 5 PocketWizard units. There are also some extraneous things packed about the bag. It has a laptop pocket separate from the main pocket, and 2 small pockets on the front, where there are little sleeves for memory cards and such. I keep stickers and pens and wax in there. It has straps to attach a tripod, which I use for my light stand bag. I have only had this bag for a few months, but it has done nothing but amaze me. I don’t think I will ever need or want a bigger bag; this one is heavy enough.
Lowepro Vertex 300 AW backpack