Made popular by Speck and its CandyShell series, one of the more prevalent case concepts today co-molds rubber and plastic in a single piece. That’s exactly what Rapt is, although X-Doria adds a unique design aesthetic that helps differentiate it. The body is just what we’d expect: its core is hard plastic, with soft rubber at the front edge, running over the buttons and around the ports. Despite the fact that the case is just slightly…