Polycarbonate hard shell on the back and shock-absorbing TPU edges for reliable protection. (Tested with 26 drops from a height of 1.2 metres, according to US MIL-STD-810 G). 1.3 mm raised bezel area to ensure full screen protection in the event of a drop. 1.5 mm thin and elegant housing made of 100% transparent materials with anti-yellow effect Integrated protective buttons and precise connection cut-outs guarantee easy operation.