Otterbox needs no introduction for its toughness and protection for your beloved gadgets. Their latest entry is the "Reflex" series to protect the lovely iPhone 4. Unlike the traditional Otterbox protection which can have up to 3 or 4 components, this one is fairly minimal with a 2-pc. design. The 2 pieces are composed of two hard plastic halves that slides towards the center locking the iPhone 4 in place. I believe Otterbox did this to allow people quickly remove the bottom half so they can dock their iPhone 4. There is a small flaw here since the case is fairly precise, if you affix the screen protector that came with the case, the constant sliding on and off of case may cause the screen protector to peel away from the edges.
Once applied, the Reflex case is as sturdy as what you'd expect from Otterbox without the usual Otterbox bulk. While the case does add a little heft to the iPhone, I still find it bearable. The backside of the case has small strips of rubber fused into the case which I assume its for added traction (keep case from slipping in and out of pocket). Personally, I would have preferred slightly more traction on its sides so the case can be picked up easier from a desktop.
Overall, the Reflex case (MSRP: $45) from Otterbox is a pretty good choice for those looking for ample protection without the bulk. The package comes with the case and a screen protection kit. Otterbox offers up to 4 color combinations to choose from.