SportShell Convertible for iPhone 5 Black. The patented design of the Marware SportShell Convertible iPhone 5 case gives you four case functions in one, transforming for work, the gym, Facetime and a night on the town. Just switch out the interchangeable back pieces and enjoy its versatile features: an armband for exercising; a stand for hands-free viewing; a 360 belt clip for the office; and a thin back shell for sleek style. A new TPU inner lining provides shock-absorption and push-through button protection for your iPhone 5. The Marware SportShell Convertible case for your new iPhone 5 transforms to keep up with the demands of your busy, active lifestyle. Its more than a case.