I need a Case for Backpacking

[Pennine]

I'am looking for a case for when i go backpacking,so really it needs to totally enclose the phone pretty much like a box. I will be storing it inside my pack and wont really use it until the evenings.I could do with buying it on the web too.Any ideas out there ? cheers

[cyclingplatypus]

I'd say Otterbox (http://www.otterbox.com/products/ipod_cases/iphone_case/)