-The white frame is made from a Delrin and Graphite composite (same material used in F1 race suspension)
-The back piece (3M sticker) is made from real carbon fiber
-No signal, data GPS loss
-Compatible with iPhone 4/ 4s
-Extremely light weight (only 15 grams)
-Verizon, Sprint and AT&T compatible.
-Made in the USA
Please keep in mind that after market accessories may not be compatible with this case.