Back hard shell made of polycarbonate and shock-absorbing TPU edges for reliable protection. Tested with 26 drops from 1.2 meters, according to US MIL-STD-810 G. 1.3 mm raised edge area to ensure complete screen protection in case of a fall. 1.5 mm thin and elegant case made of 100% transparent materials with anti-yellowing effect. Integrated protective buttons and precise port cutouts ensure easy operation.