New Tunewear Eggshell Ultrathin Light Hard Back Cover Case for Iphone 6 4.7" (Smoke) An art form at 0.8mm In order to offer comprehensive protection and strength, we have decided that 0.8mm was the best thickness for the iPhone 6 form factor. Any less thickness would have resulted in the case peeling off or not offering impact protection. Even though the thickness is only 0.8mm, this one piece case adds extra protection over the most used controls which are the volume button and the sleep/wake switch. The microphone and speaker are left uncovered to perfectly match the body of iPhone 6 and to eliminate the chance of any voice or sound distortion. Built into the case are 2 holes for connecting lanyards or straps and the increased case thickness around the holes doubles the materials strength. The size of the holes allows for easy installation.