The Dual Hard Case is optically chic and very discreetly by the large, transparent surface. The Alurückseite is optimal gun (Hard Case), wherein the shell is not too much bulk. The mobile phone is not so much thicker. The frame is protected by a softer material (Soft Case). The buttons on the side can still operate well and are protected from scratches. What I particularly like about the envelope that the recesses are separated individually below for the connections. Ie between charging jack and the speaker / microphone is a web which enhances the protection of the lower edge of each. (In other cases there is often only one long recess. The resulting thin frame can hardly protect the lower edge of the front side.) Only the packing and unpacking of the iPhone is through the hard shell back a little more difficult. Who the phone often "unwrap" from the shell should, for example, for a car-mounting, is probably better off with a full soft case.