Shock Slider for iPhone 5 ($50) is new from Incase, and not all that different from the company's recent System Vise. The case is composed of three pieces: a rubber skin that can be used on its own, plus hard plastic that slides on from the top and bottom for extra protection. This allows you to choose how much coverage you need, when you need it. Sleep/Wake and volume button protection is built into the case, which comes in black and grey or…
