Good:
-very fine, she sees little, and hardly changes the z1 compact design, and above it hardly adds thick :)
-l'arrière is full of microscopic hole, inner side (almost invisible unless one sticks his eye to 5cm !!) that prevents shell "stuck" on the back; suddenly no bubble (as often with clear silicone shells)
-Access to the magnetic loading (important for me because I recharge like that)
Not good:
-too fine and suddenly some places are "loose", there is a very slight play
-a bit too expensive (8 euros without postage ..), when it was in hand, it's a little cheap :(
-Access to the micro sd can not shell in place, it should be removed to gain access
In short, I put 2.5 / 5 (even if I put 3 stars, no choice), because reading the description, I did not expect was that.