The Symmetry Series is an elegant and precisely designed protective case for your smartphone and is easy to install thanks to its one-piece construction. The dual-material construction makes the Symmetry Series one of the thinnest and most protective cases in its class (built to the military standard Mil-Spec). The raised, moulded edge serves to better protect the touchscreen, while the material and honeycomb structure on the inside protect the smartphone against impact and shock. A wide range of patterns and colours offer the user personalisation options. The flat, simple Symmetry Series offers the style you want and the protection you need. Tested by us. Designed for you. At OtterBox, we have an engineering team whose passion is to create truly great products. Our continuous efforts in development and design have already resulted in more than 300 patents. We test every design/material and make sure the products can withstand the rigours of everyday use. On average, each design has to withstand more than 238 hours of testing and more than 24 different tests.