Lucky enough to own the iPhone 5?. Want to give it the maximum protection while preseving the stylish looks?. Tech 21s Impact Snap Case is fully integrated with D3O, a patented protective material that combines impact protection & high performance shock absorption to protect your electronic device. D3O is a revolutionary technology used by the Ministry of Defence & US Special Forces, as well as in impact sports such as motorcycling & skiing. The unique structure protects your investment without compromising the functionality & style of your device. What is D3O?.....D3O is a patented protective material that combines enhanced chemistry with product engineering to produce high performance shock absorption & impact protections solutions. In its raw state, the D3O material flows freely when moved slowly, but on shock, locks together to absorb & disperse energy, before instantly returning to its flexible state. This, combined with product engineering & enhanced chemistry, results in a number of high performance impact protective solutions. How it works..... The functionality of the raw material originates from the synergistic effects of the polymer based dilatants. Energy is distributed throughout the synthetic elastomeric polymer & the enhanced chemistry continues to distribute energy on throughout the matrix, significantly reducing the effect of impact. Put simply, when the D3O material is impacted, it acts like a net, reducing & spreading the force over a larger area, minimising the risk of injury or equipment damage.