You might not be familiar with Anvil, the brand, but you have more than likely glimpsed their handiwork on at least one occasion. They make musical (and other) equipment cases that look nigh on bombproof. Now they make an iPhone case, which keeps with the familiar design aesthetic.
I know, I know, there are plenty of people who will tell you that your iPhone does not need a case – they might not but I do. The day that I took my iPhone 5 out of its Otterbox Commute was the day a clumsy student accidentally knocked it off my desk – destroying its screen. I did manage to get a free replacement out of Apple, but it was a hassle, and it made the person who broke it feel terrible. I don’t need those complications.