GoGo USA offers the HM series iPhone case that is lightweight and durable. Weighs less than 1 ounce and measure less 1mm thickness, GoGo’s HM series is probably the lightest and thinnest iPhone case in the market.
GoGo HM Series case is “made of polycarbonate with excellent soft touch feeling”. It offers slip-free and snap-on features. It is available for both iPhone and iPhone 3G.