What is this magic? I must check it out!
http://www.knomobags.com/uk/elektronista-leather-digital-clutch-bag.html
Not cheap but it's been worth it for me. I've got a lot of Knomo stuff and they stand up well to daily abuse.
Since my review on the page, I've got an iPad air2 plus the Logitech slim keyboard and eliminated paper again from my work routine. Very satisfying.