I am looking at Marston Bindery
https://www.marstonbindery.co.uk/ it seems their medium size case will fit.
However there is an issue, Kobo Aura One has the power button at the back of the device.
So I wonder how this will work.
I am thinking to put a shirt button on the case, so when I pressed the top right area of the device the power button will get pressed.
Anyone has used this case before?