I must say I am pleasantly surprised by this shell. So why this envelope is recommended?
In relation to a pure silicone case it is neither attractive nor bad dirt to clean. Outside feels like hard plastic, inside is roughened something that increases grip.
The wafer-thin silicone inner sleeve lies over loud / bar keys and the standby button, which I consider to be extremely useful for the purpose of water and dirt. The same applies to the charging socket and the headphone jack (for an extra plug in), whether one loses at some point I can not say yet. Extremely positive: through the inner shell, the cover does not scratch the phone. Unfortunately, this is not the case with many others.
Cover System: The shell is made of two parts that can be put together into an envelope (which increases the stability of the case considerably). Yes the silver edge of the phones is covered with what I value more than advantages as a disadvantage (the hardcase where this was not so, I got myself a few quirks)
Nicely here is that the envelope is hardly noticeable.
Conclusion:
Pass Accuracy: *****
Stability: *****
Protection against scratches through the shell: *****
Protection of Phones: ***** (incl. Sealing the open sockets)
Hand feeling: *****
Appearance: **** (here a trigger * But that's a matter of taste.)
