Online shopping is better, such as Cell Phone Age com where the price of protection cover for iPhone 6 is only less than 10 USD. Pay attention to choose high credit and sales shop from which mobile phone cases will be better quality. Before buying an iPhone case you should look at comments on the overall quality of mobile phone cover, try not to go to the offline store to buy where the price is too high. You‘d better choose the color of mobile phone case according to their own preferences. If from the aspect of dirty consideration, dark colors will good choice, such as gray, brown, black, etc.
Link for shopping: protective case for iPhone 6
http://www.cellphoneage.com/en/phone-case