I bought the 9x12. The kindle 2 fits in nicely. I put the kindle in the bag while the kindle is in my oberon cover, and it fits fine. I also have a kindle 1, and did a fit test with it, it fits in with the cover a little tighter, but fits. The plastic is clear, and I don't have a problem with glare. I can use the side buttons on both kindles without problems. The plastic is a little stiff, so the scroll wheel on K1 didn't work well, and the 5 way on K2 took some practice. I could use the keyboard on K2 after a minute of practice. Forget about using the slider to put it to sleep, I put it in the bag, wake it up, and then seal the bag. I'm not saying the slider is unusable in the bag, but it was to much trouble to bother with. The top of this bag seals with 5 twist clamps. I wasn't very trusting of this, so I put some small rocks and some paper towels in the bag (without the kindle of course) and dropped it in the tub. I left it for 15 minutes, which, of course would never happen even if I dropped my kindle in the tub, but I wanted to give it some time. When I took it out, I dried the outside really well, then opened the bag, everything was completely dry inside. So, for the kindle, it is water proof. I can't test the actual sea worthiness, as far as dropping a camera out of a boat type situation. It did sort of float, by the way. Not in a life vest sort of way, but the yellow band did stay toward the top to be grabbed easily out of the water. I didn't notice any condensation build up, but I put the little moisture absorbing bags that you get with shoes and OTC medicine in the bag when I use it. The stuff is silica I think? I know you can buy them, but I've forgotten the name, I'll research and come back and update that part. I've also just put in some cotton, for short periods, and that seems to have worked, but someone with more technology skills would have to make recommendations to you on that. Overall, I like this product, it works, is easy to use, and for the kindle works well. I also tried other things in this bag, I could fit my iphone and my camera both in easily together. And I have a Sony 505 and 700 and both of those fit in, individually, with their cases as well.