This iPhone 5S case is double layered with a TPU case and a polycarbonate hard case to provide additional protection in a form-fitted design. The TPU case features improved shock absorption on the top, bottom, and corners to effectively protect the iPhone 5S from external impact. The Polycarbonate hard case provides tougher protection from impact to the back and sides of the device. Application of the case is extremely easy, the main TPU shell goes on the back of the phone. This is a simple process as the TPU shell is soft and flexible. The hard polycarbonate shell then goes on the back of the phone. Both parts will hold together securely giving your device excellent protection whilst maintaining a stylish look.