Patchworks flexguard case is a soft and flexible tpu (rubber like plastic) case that has extra corner drop protection by poron xrd extreme impact absorber(usa), which is considered to be the most advanced shock resistant material. it meets or exceeds u.s military standard drop testing requirements.(mil-std 810g). unique texture on the surface will give you a better grip. the internal net structure helps to reduce damage from accidental drops. using flexguard, your device is fully protected!