Ringke Fusion-X Impact Case ($13)
This next case you'll either love or hate, but it serves a purpose. The Ringke Fusion-X isn't like most cases.
They're using a 99.9% clear polycarbonate hard shell plastic on the back to keep the phone safe and show off the blue or almond color options. However, the X pattern and bumper around the rest of the case is the same soft impact-resistant TPU material as most cases use. That way you get the best of both worlds without sacrificing durability, function, or the size of the phone. Again, some love it, some hate it.
If you want to ensure your phone stays safe though, this is a great place to start. They have a military grade 10-ft drop rating and that's no joke.