The cases are both made of matte-finished plastic, the back half of which is lined with a thin, soft foam. Once your iPhone has been sandwiched between the two pieces, screws at each of the corners and right in the middle of the long sides are tightened, locking your device in place. PureGear’s designs are somewhat like Lunatik’s Taktik, although the Extreme Protection Systems are far less bulky. When a case is fully assembled, the back…