Precision-engineered to be the lightest weight case in Incase's iPhone 4/4S product offering, the Snap Case attaches easily and securely, providing device coverage, scratch protection and direct access to all iPhone 4 and iPhone 4S features.Please view this guy's
Incase Snap Case photos to get an idea of exactly how an Incase iPhone 4 Snap Case works (note, this is a photo of a clear Incase snap case).
“Stylish and minimalist. This case is very sleek and adds very little to the overall dimensions of the phone. It has a nice tactile finish and looks good. It will protect your phone well from bumps and the occasional drop but this does take its toll after a year or so. This is my second case - my first got small cracks on the corners. If looks are important to you as well as good protection then this is the case for you. If you don't fancy forking out for another before your phone is up for replacement i'd suggest going for a thicker, rubber style case.”