That one looks a lot like the MoKo cover. I wouldn't be surprised if they're even the same.
This one is the same sort of cover I have for my KPW1. Bezels covered, and it even has a retaining flap on the left.
If the slim-fit covers don't pan out (they didn't, back then, for the KPW1, as they all had a clasp, metal, protrusions, or no closing mechanism), I'm going to try this one. First I'll wait for the slim-fit covers to arrive.