This bag is larger than I'd expected. It's about the size (and shape) of a case for a full-size pair of binoculars. Also, what you don't see in the picture - under the flap - are 3 outside compartments. One has a snap, one appears to be intended to put a cell phone into (clipping the cell's clip on the outside), and the other is a horizontal zipper pocket that is the width of the other two, and below them.
Inside, there is a small partitioned area that fits the Kindle perfectly - when it is not in its cover. I was disappointed in this because I am used to using the Kindle with the cover. The other side of the partition is the roomy main compartment. There is also a small pocket that runs down one side (inside) that appears to be intended for holding pens.
The bag does appear to be more versatile than its picture suggests, but if I put my Kindle in the pocket that is evidently meant for it, what do I do with the cover? If you use your Kindle without a cover, and you want something to tote it safely in, along with the charger and USB cable, then this gives you plenty of room for that, as well as a cell and other items.
UPDATE: Another customer mentioned he had managed to get the Kindle with the cover into the compartment in the bag, so I tried again, and yes, with a little wiggling, it goes in. The material has some stretch to it. It didn't occur to me that it would have such a snug fit - but it's fine, really.