Hybri-Flex Crystal Clear PC+TPU Case for the Samsung Galaxy S IV S4 - Black Made from combination of Polycarbonate (Hard Plastic) and TPU specifically for the Samsung Galaxy S IV Crystal Clear Polycarbonate Back allows you to fully appreciate the design of the phone TPU Sides and Front make the case simple to take on and off Beautiful combination of Polycarbonate and TPU will give your phone an incredibly unique look