I wavered between fitBag and this envelope. I wanted definitely one where you rausholt the phone, because otherwise I would need me bring no Neon green Lumia. We flew in that the outer material is too coarse, like backpacks. But is not he. Is very finely woven and feels soft and smooth, almost like fabric suit. Interior is lined with black sheath soft fleece. At the first insertion of the phone it was a little tight, but if you raushat the knack, it's very facilitated. Also, no side buttons have been pressed. When the phone is plugged in, the shell looks ca 0.5cm beyond the housing, which I think is very good, as well as the upper edge is better protected than when it closes at the same level. The Rausholen really only works if you compress it down. Raus shaking does not work (at least yet).
The casing is designed in Hamburg, produced in Macedonia, but it is stressed, "under very fair working conditions". If such a thing is an extra on it, I want to believe it a try.
For long-term test I can not say anything, at least the material is very sturdy.