Until they release a holster your life proof ip5 should be more than safe in your pocket. I had the case and belt clip for my 4S. Worked well however in the end I didn't really love the care. I suppose it's the texture of the screen protector that threw me off.
LP Fre case seems to have similar dimensions as the Samsung Galaxy S3. Didn't see too many low priced options so I'm going to wait for the LP clip holster.