Ridiculously over engineered or the perfect case for your ipad no matter where you39re headed designed and tested to meet or exceed us department of defense standard 810f griffin39s survivor extreme duty case is designed from the inside out to protect your ipad from extreme conditions dirt sand rain shock vibration and a host of other environmental factors survivor is built on a shatter resistant polycarbonate frame clad in rugged shock absorbing silicone a built in screen protector seals