I've found that the invisible shield isn't all that hearty. I like it as a screen protector but I've had peeling issues with the back cover no matter what I do. Plenty of cases fit over the shield but it still seems to fray/peel at the edges.

That is why I went with the Zagg leatherskin instead. The leather seems not to peel/fray even at the edges. I was able to put several cases on top of the leather skins - the last one I tried was a Built hard case. Fit over the leather fine.