Trident Case AEGIS Series for Samsung Infuse - Retail Packaging- Black The four corners of double-thick silicone insulate the device from everything including light bumps to violent drops with a unique shock-absorbing design. The outer-shell of the Aegis is composed of hardened polycarbonate (hard plastic) with a rubberized coating, encapsulating the case with a rigid structure and smooth-touch surface. The case comes with a scratch and smudge-resistant screen protector  keeping the screen safe without sacrificing the responsiveness of the touchscreen. The inner lining and bumpers are silicone. Samsung Infuse 4G