We think it's a little bit of both.
Simply put, the Griffin Survivor All-Terrain Case is the most protective case we've ever built. Designed and tested to meet or exceed US Department of Defense Standard 810F, Griffin's Survivor Extreme-Duty Case is designed from the inside out to protect your Kindle from extreme conditions ... dirt, sand, rain, shock, vibration, and a host of other environmental factors.
Survivor All-Terrain is built on a shatter-resistant polycarbonate frame clad in rugged, shock absorbing silicone. A built-in screen protector guards your touchscreen from the outside environment, while hinged plugs seal connectors and ports.
Survivor is independently tested to meet or exceed environmental testing standards for blown rain, blown dust and grit, vibration, shock, temperature and humidity. How well does Survivor perform? You can view videos and test results online at www.griffintechnology.com/armored.