I thought this might be helpful to those in the market for a good case for their phone in outdoors and other hard conditions. I just today after 16 months about of using it replaced my Otterbox Commuter. It has been through it all and earned it's rep with me over the time on my iphone 4s. I have dropped it on concrete, on rocks, on the wet ground, fell on rocks with it in my pocket, used it in the rain, dropped it in a river (no joke), left it on the wet ground at camp, stepped on it, just about any abuse you could imagine doing to a case and phone.
Here are the pics of what it looks like now, I think it held up very well. It only really started to deteriorate and the break in places within the last couple months or so. Until then it was almost as new with a few scratches and things. Anyway you can make your own call but I would certainly recommend them, their defender case is supposed to be even more robust.
Upper left corner of the hard shell broke off completely a month or so ago.
This a few weeks ago.
And this started a couple months ago and is now almost off completely.
Also here is the case I got to replace it. Speck Candyshell which is also a rubber inner and hard shell outer. I think I will like it, the only thing is I need to get port protectors as it doesn't have them built in like the Otterbox.
Anyway hope that helps someone, I realize there are a 1000 phone case reviews on the web but most don't put them through abuse some of us give them so thought I'd share.