iShieldz

There is a kiosk In front the Apple Store which offers a protection to all kinds of phones: iphones, cell phones, smart phones, etc. They look like clear silicon full-​size stickers. So forget about bulky cases! For $ 25 you receive a lifetime guaranteed warranty. It means that destroyed covers should be replaced with new ones (at least they promise it).
iShieldz give absolute scratch resistance and almost invisible. I had for it for a year on my iPhone. When I removed the covers two days ago I was amazed by how clean and clear the surface was underneath the covers.
I strongly suggest you to try at least and I am pretty sure you’ll like it.