I had a Decal Girl skin on my 11" Smart Keyboard Folio for almost two years before I sold it, and removed it right before shipping the item out to the buyer. It did absolutely no damage to the material on the Folio, which is the same exact material that's used on the Magic Keyboard. Granted, I did not carelessly rip it off--pull slowly and carefully and it will come off with no problem. And because of that, I put a Decal Girl skin on my Magic Keyboard with full confidence.Hopefully the leather effect allows for some grip over the flat versions as some people have mentioned skins make the cover slippy. The leather style is the one I'm considering - but I'm also thinking of the Pull & Bear covers as I'm not sure if the glue from a skin will effect the AMK finish once removed?