I just Finished installing a SGP skin guard cubed, zagg screen protector and white bumper on my Iphone 4 and the same for my wife except she has the blue bumper and white SGP skin guard in white leather. We really like the combo and it makes the bumper fit perfectly on the phone. It doesn't take away to much form factor and gives the phone about as much protection without have to get a otterbox (which is to big for my taste). If you take you time with the zagg which I am a god at installing its pretty easy to do. I also have the ifrogz luxe lean but it scratched and chipped in about 3 days so now its a back up.