If silicone made iPhone 4 cases does not satisfy your needs, perhaps you can try something stiffer materials like fiber carbons of perhaps graphite. These iPhone 4 cases made by Griffin Elan and made from Graphite. The cases are to be shop proof. I am also amaze at how the material can be so light. The case is selling at a very reasonable price. Installing the case does not require any special skill you can easily do it. The package will include everything that you need from small screws to every bit of pieces to put together your case. This has also received a good rating and feedback from other users.