Phone slippery

Hi the phone itself the software is very good and has a lot of potential just 1 small problem with the hardware is that its slippery the outside and i keep it in my shirt pocket so almost every time i bend down it falls out of my pocket i must say the phone is built very strong cause it fell on concrete rocks wood and nothing happened to the phone it still in perfect shape not even scratches but that's not a good thing for the phone to keep on falling so if possible to make a case for the phone and best would be a case with a belt clip like that i don't need to keep it in my pocket only where i'm use to and frankly the safest place to hold a phone