Since I have but decided after an initial love affair against a silicone version, it should be a sheath of leather. At PU imitation I did not want and then I came across this leather case.
So far I am very satisfied. The good part is solid and functioning properly. In addition, it ages beautifully, as leather does. The result is a beautiful patina.
What bothers me somewhat: To connect headphones to, you have to insert the phone upside down, since there is no opening at the bottom of the plug.