Special hardening treatment for better scratch-resistance and durability. 85% optical transmittance, allowing you to see through more of the original beauty of the iPhone. The AIRBARRIER back cover leaves a 0.3mm space between the case and the phone, safeguarding your phone from shocks and drops. Certified with MIL-STD-810H drop-tested protection. Composite hard and soft materials create a better touch and provide enhanced protection. Magnetically compatible, enabling convenient charging and use with compatible accessories.