The way that Amazon groups "identical" items with color options definitely failed on this one, but that is VERY obvious from the pictures. It wasn't obvious from the pictures which type was laid out which way, so I ordered two different ones, the Olive drab and the tan w/ radioactive symbol. I figured for the price, I could just return whichever I didn't like. Ended up keeping and LOVING both, for different reasons:

Olive Drab:
Has no inner dividers, but has a small "security pocket" inside, big enough for a checkbook plus pens and a few flash drives.

Higher quality fabric, VERY STURDY strap, which is also adjustable, not padded, but wide.  Lots of inside space, 4 pockets, each big enough for a large water bottle, but the pockets are kinda weird, stuff in them is not really secure, feels like little stuff might fall out.

Heavy. Higher quality canvas makes it heavier, but if you need it to carry a laptop plus 3-5 hardcover text books, you probably don't care about weight. This is the one you want.

Ended up using this as a camera bag for my camera kit, the pockets are perfect for lenses, and I have 4 primary lenses so it worked out. Love the ample space inside, no crazy "features" to get my hands caught in when I'm in a hurry, but obviously I had to "craft" a cradle for my DSLR body to rest in. the fabric quality is just as good as any of the $100+ "journalist" or "reporter" bags, and it actually looks very similar as well. (also, space for a laptop)

Tan w/ Radioactive Logo
2 inner dividers = 3 inner sections, each big enough for a laptop in a thick neoprene sleeve, with some slop. (One is completely separated off, the other two are 1 big pocket w/ a fixed divider.)

Strap is kinda wimpy. The metal fixings appear durable enough, might decide to replace the clasps that actually clip to the bag, as this clasp design can bend over time, but they seem pretty good. The strap itself is maaaybe an inch thick, and the sliding pad for your shoulder isn't really padded. Also it's not very long. Most men won't be able to cross it over their head to rest on the opposite shoulder, displacing the weight onto your back, some small women probably can, but not everyone. It isn't really comfortable that way, it has to just hang on your shoulder straight down.

Only has 1 extra pocket, but it is better designed. Has about a dozen slots for pens, plus a large pocket. There is a flap with snaps to make sure everything stays where it should be, it is a good design.
Fabric is not as good, but still feels sturdy. I like that it is SIGNIFICANTLY lighter, and a bit smaller. I wanted a daybag/man purse/"brief case" to carry my laptop and sketch book around with me, to work etc... This one is slightly smaller, lighter, has better secured pockets for knick-knacks