Buy an otter box or some other real case, you will be glad you did
Waiting for the Otterbox for the 6 Plus to be available.
I have had great luck with Speck candy shell cases. With slacks (yes I used the word slacks instead of Dockers or khaki's), the phone is in and out of pocket no problem. I've accidentally played soccer with it resulting in no damage. Haven't had ANY breakage the last 4 years I've used them.