I had tried looking in army/navy surplus stores for a cross-body bag that was ample size to fit my stuff (see below), looked good, was without insignia and could carry water bottles/travel mugs. I wasn't able to find anything in stores that suited my needs, but I did find several product numbers which led me to this bag. This is a great bag size wise and looks great too.

I had originally purchase the departure bag by Rothco, based on the size description (about 9x12x4) and that looked like a purse on me. I'm not a big guy, but man, that little bag was just that, little. So I had to go back and revise my size requirements.

The Rapid Dominance bag really fits the bill. The large interior pocket fits normal sized A4 paper and file folders, my umbrella, a collapsible grocery bag (one of those nylon compression ones that packs into itself) and several moleskine classic sized notbooks with ample room to spare. There is a small interior zippered pocket as well that hold my keys and other valuables. The main compartment has a zippered closure that really makes me more confident that my stuff won't spill out if/when the bag gets tipped over.

The two front pockets hold all my loose stuff, pens, dry erase markers, one USB to outlet adapter, two charge cords, a reusable coffee sleeve, REI multi-tool, small bottle of Aleeve, and sunglasses. There is room for more stuff, but with the narrower zippered opening it's a bit hard to get my hand in there and fish around for what I need. I am going to get some pouches to organize my stuff, but for now, this still works great.

The back hook and loop closure pocket holds my orignal kindle (standing up on end only a little bit pokes out the top) as well as another pen and notebook for easy access.

The two side pockets hold quite a bit, I can fit a 27oz Klean Kanteen in one pocket and a travel coffee mug (this one: http://www.amazon.com/Design-For-Living-Reusable-Double-Wall/dp/B004A8JKK4/ref=sr_1_cc_1?s=aps&ie=UTF8&qid=1365613480&sr=1-1-catcorr&keywords=dfl+coffee+mug). Putting anything in the side pockets does infringe on the interior space, but there is still plenty of room for papers and whatnot. When not being used there are snap closures for each pocket, which I never use.

The flap secures to the front of the bag via hook and loop which is fine, I would prefer a button or clasp closure, but if I were so inclined I could just sew those onto the bag. The flap is actually double layer canvas with two loops on the front to affix things. I am using it to hold my bag swag right now (a carabiner looped sideways and hooked to a paracord survival bracelet). The only complaint I have is that I can see the canvas of the two front pockets pilling a bit where I have rubbed the rough side of the hook and loop closure against the canvas.

The two inch shoulder strap feels rugged and helps alleviate pressure when carrying heavy loads.

Overall I feel like this bag is going to last a long time and I'm excited to have it!