Designed with a modern protective exterior, the Aegis case is a perfect blend of style and durability for everyday use. Aegis cases feature an inner-layer of shock-absorbing silicone with an outer-layer of hardened polycarbonate, providing two layers of protection. The hardened polycarbonate exterior allows it to slide in and out of pockets with ease. Power-ports and audio-jacks are covered with silicone plugs to keep out dirt and debris. Dust filters protect speaker bays, and a self-applicable screen protector is included. Lanyard loop allows you to accessorize your phone with key chains, charms or other accessories. Aegis cases meet Military Standard MIL-STD-810F for vibration and drop (independently tested): Vibration (Mil-STD-810F, Method 514.5) from 20-2000Hz across 3 different axes for a total of 18 hours. Drop (Mil-STD-810F, Method 516.5) - 26 drops onto concrete from 4ft.