The DUO is not your average iPhone case. It’s manufacturer from sumptuous leather, and like the name suggests you can insert your iPhone 4 from either end. We’re not sure how it works, but a security strap keeps it from sliding out and apparently reacts independently to the outer casing to create a secure stopping point. On the inside is a microfiber lining, which cleans your iPhone every time you insert it. Surprisingly, the DUO costs just $29.99, plus $3 for S&H. That ain’t half bad considering it’s made from real leather.