The Quattro T2 case is truly unique. It boasts an unprecedented 4 layers of protection for the iPhone 3G/3GS. The innermost layer, is a polysilicon skin that encases the phone, similar to the T1. 

It also includes the integrated port protectors to protect against dust, moisture, etc. The second layer is the unique Xylo Glass® screen protector that fits over the screen and allows for touch through use of the screen. The outermost layer is a hard polycarbonate shell that snaps into place over the silicon skin. 

It features a built-in, high shine, polished aluminum faceplate for added protection and style without excess bulk.