1. Concise: it is simply shaped and turned to leave a pure and comfortable impression on everybody.  
2. Functional: the case can fit your phone well and make a big difference on protecting your phone from scratch, shock, slip and so on.  
3. Convenient: all buttons and ports are accessible.  
4. Portable: it is unnecessary for you to take it off once your phone puts it on because it is quite thin and light.