1.  Samsung Galaxy S4 Case Slim [Ultra Fit]

 Fits well, durable, light, and slick design.  Anti-Slip design.

galaxy s4 cases top best top Galaxy s4 cases 2013  

2.  Samsung Galaxy S4 Case Slim [Ultra Fit]

Here is another nice case that I would recommend. spigen neo case galaxy s4  

3.  Maxboost Shell Holster Combo Protective Case for Samsung Galaxy S4

maxboost shell holster