85% Optical Transmittance, Seeing Through More Of The Original Beauty Of The Iphone. The Airbarrier Back Cover Leaves 0.3Mm Space Between The Case And The Phone To Safeguard Your Phone From Shocks And Drops. Certified With Mil-Std-810H Drop-Tested Protection. Composite Hard And Soft Materials Create Better Touch And Protection. Special Hardening Treatment For Better Scratch- Resistance And Durability.