The envelope touches his quality of, is very well made and offers a good all-round protection for your iPhone. By duchsichtige material the unit suffers only slightly to its design. All keys can be operated without any problems. Nevertheless, only four stars because I can not insert the Lightning on 30polig adapter when the sheath is placed around the Phone. Now one can argue about whether Apple's fault or the manufacturer of the shell (I personally tend more to Apple, the plug is not thought :-)), but the situation is now time given so. So I have cut the envelope accordingly at the bottom and all is well. The voltage at the edges is still given by the removal of the lower ridges.