I have chosen for these manufacturers, since I already have this from a shell on my iPad Air (1) and am very satisfied with it until now.
The cover protects the Kindle reliably from all dangers of everyday life and not bother especially when reading (with one hand).
In addition, the Kindle is put at close of the device into sleep mode.
Here it is up right after a couple of times and close the small magnet that holds closed the case, slipped out of its holder and towards loose laid on the lid. I have the magnet, however, just turned over and pushed back into the holder, since he has remained in place. That was the first moment a bit disappointing, so a star deduction.