ESR Crystal Clear SLIM
Now for the other side of the spectrum. If the Lifeproof was too expensive, this ESR clear case for $10 might be a better choice.
What you're getting here is a simple, elegant, no frills case. This is just a solid all TPU case that's completely clear to keep your phone safe. There's nothing to it, but that's the point.
This is a minimal clear case that has raised edges to keep the camera and screen safe, without adding bulk to the phone. It's one of the thinnest clear cases available so far.