OK, I know what you meant but let me be the first to say THERE IS NO SUCH THING!
I HATE when people say "bullet proof". I've seen a dozen or more CHIEF OF POLICE on the news from various states and departments saying things like "the officer was only saved because he/she had their BULLET PROOF VEST on". I know it's semantics and all but THEY DON'T EXIST. The problem with people saying that is that some officers are stupid enough to start believing what they hear and that'll lead to your DEATH. They are Ballistic vests or bullet resistant vest or body armor but NOT proof!!
I am a Paladin, like the warriors of old, ready to stand on the line to keep others safe... A Sheep Dog, ready to protect the herd from advancing wolves!