A protester/rioter wore this today in the Ukraine. He was shot with a full caliber-rifle round which clearly shot right through the kevlar in this body armor.
There is no such thing as a bullet proof vest.
If there are any gun control/confiscation supporters left after seeing the carnage that has unfolded today, I have nothing left to say to you. This was a shootout against mostly unarmed civilians that had nothing more than pieces of concrete, bricks, and occasional molotov cocktails to throw at their alleged oppressors.