what are vests made of
Plastics are now being used in the manufacture of life vests. Some vests are made from closed-cell foam or foamed plastics which are encased in nylon. Closed-cell foam has been around since the 1940s, but it was not until the 1970s that its use in survival wear was introduced. A closed-cell foam insert is made of tiny, individual air-filled pockets within the foam itself.
Bullet resistant, not bullet proof. What most people consider bullet proof are soft vest armor like that worn by police officers. This is typically made of Kevlar, DuPont trademarked fiber. This aramid fiber is incredibly strong with very hig...