TECH21 D30 Impact Band Bumper for Apple iPhone 4/4s - Glossy Smokey
The Impact Band is a revolutionary design that encircles the device, that shows off the distinctive logo on the back. The Impact Band comes with a compatible clear back plate to prevent scratches and other damage to the back of your device. A secure fit, companied with the minimalistic design with access to all ports and functional buttons create the ideal solution for the device.D3O  is a patented protective material that combines enhanced chemistry with product engineering to produce high performance shock absorption and impact protections solutions.The same revolutionary technology is used by the US Special Forces and Ministry of Defence as well as in Sports such as motorcycling and skiing.