OtterBox Protective Case 77-51584 'Defender Series' for Apple iPhone 4 & 4s + a Belt Clip / Holster, Wounded Warrior Project (Retail Packaging) 3-Layer Protection: Equipped with three, rugged layers of protection: built-in screen protector, polycarbonate shell and synthetic rubber slipcover. Dust Protection: Sealed port covers stop dust, dirt and lint from clogging your jacks and inputs. Screen Protector: Built-in, ultra-clear membrane guards the touchscreen against scratches and scrapes., Drop Protection: Three materials work together to absorb and deflect shock away from the device. Scratch Protection: Device stays completely covered to keep it looking as new as the day you got it. Port covers keep dust and debris out