Accessory constituting a good alternative to protect your smartphone, particularly since there are quite a few models Z1 in trade. It is more practical aesthetics, because leather does not really "leather", and rather like a section of PVC or polyurethane. Not necessarily convenient to talk or take pictures because of the flap, but we made it to use force. Nevertheless, and although a little austere in its presentation, it fulfills its function of protecting your phone; and the transparent protective film on the screen to ask is welcome.