The Aegis Case protects your tablet with an inner-layer of shock-absorbing silicone and an outer-layer of hardened polycarbonate. The Aegis case also features silicone plugs over port openings to protect from dust as well as an included screen protector and installation kit. The Trident Aegis Case meets Military Standard Mil-STD-810F requirements for Vibration (Method 514.5) and Drop Protection (Method 516.5: 26 drops onto concrete from 4ft).