I was turned on to this case with a very simple demonstration:
This pitchman was at the downtown San Francisco Apple store with this orange, putty looking material wrapped around his finger when I walked in. Two seconds later he was beating the crap out of his finger with a hammer. WHAM WHAM WHAM WHAM!
After the smashing ended he removed to material to reveal an undamaged finger and announced the product that used said material was the Tech21 iPhone case.
Seconds later I was upstairs and the moment I laid eyes one, I was out $34.95. The cases are slick looking, protective, light, thin and easy to get out of your pocket. Need I say more? Fine, check out the video below for the Full download.