In reply to Yalms:
I would really recommend lifeproof.com, they are not the cheapest but do work well, mine goes in the pocket of my BA when kayaking ( I work as a kayak guide in the alps) so aways getting soaked.
Its good for taking pictures through too,
this is my photo album on px500
https://500px.com/robo7
80% taken on iphone through the case including the top 10 shots.
cheers