I have a Ringke Slim case on my Nexus 5. Won't protect from a drop on concrete or anything like that, but it has a bit of lip to help protect the screen if you place the phone face down. It's also raised slightly in the back to protect the protruding lens. Material is very similar to the back of the phone, which gives it almost the same feel in the hand as you'd get if you were rocking the phone without a case.