This, D-Small, is too small and so I returned. I have kept the D-Midsize, which was a little big but ultimately one that was best. The D-Midsize by cons seemed perfect for a Fujifilm X-E2 with the 18-55mm kit lens.
I found the Case of good quality and practical closure pressure. I do not use the mechanism to attach the cover to the device, which is provided. Only downside, I regret that Optech does not make the products more nice color or printed score.