The AL13 iPhone Bumper is Made from Aerospace-Grade Aluminum

 - Feb 22, 2013
References: thinkbym & yankodesign
Smartphones, unfortunately, are not built to last; however, you can do your best to extend the lifespan of your trusty handset with the AL13 iPhone Bumper. It won't wear, tear or slip off of your cellphone because it's been manufactured from an exceptionally durable aerospace aluminum.

The great thing about the metal case is that it can provide a significant amount of protection with a very fine frame. The new Apple mobile phones are so slim and sleek and most iPhone cases fatten them up with unsightly bulk. The Designed by M product is lightweight, providing the minimum amount of coverage while offering the maximum in shock-absorbing armor. The AL13 iPhone Bumper is backless and comes in a variety of sharp colors.