And there is various versions of bullet proof vests.
Some is thick and chunky like wearing a solid foam life jacket
with metal plates inside.
Some is just like a piece of clothe vest that is coated with
teflon to redirect the bullet to slide alongside the vest instead
of going thru the cloth to the body.
A very very rare and expensive version is that the vest emits
some kinda of radiation, that absorbs/cushion the momentum of
bullet. (However, not sure its available for real yet.)
