Hello, Case of good quality appearance: good seam appearance leather ... The two sides are not elastic bellows, but the same PU Leather as the rest. But this is no problem, since a little longer than the iphone 6 team silicone shell IPhone 6 IDACA TPU Silicone Case Cover for iPhone 6 4.7 inch, Transparent all returns hair cell in the case and slips well for input and output of the device smoothly, or resistance with this silicone shell.