The outer layer was designed to absorb the bullet's energy and the thicker inner layer stopped further penetration.

The armor would be left badly dented but still serviceable.

These vests often have a ballistic plate inserted into the vest.

counter strike source always validating-20

Kim Gi-Doo and Gang Yoon found that cotton could protect against bullets if 10 layers of cotton fabric were used.

The vests were used in battle during the United States expedition to Korea, when the US Navy attacked Ganghwa Island in 1871.

Vests designed for bullets offer little protection against blows from sharp implements, such as knives, arrows or ice picks, or from bullets manufactured of non-deformable materials, e.g., those containing a steel core instead of lead.

This is because the impact force of these objects stays concentrated in a relatively small area, allowing them to puncture the fiber layers of most bullet-resistant fabrics.

In 1538, Francesco Maria della Rovere commissioned Filippo Negroli to create a bulletproof vest.

In 1561, Maximilian II, Holy Roman Emperor is recorded as testing his armor against gun-fire.Prison guards and police often wear vests which are designed specifically against bladed weapons and sharp objects.These vests may incorporate coated and laminated para-aramid textiles or metallic components.The US Navy captured one of the vests and took it to the US, where it was stored at the Smithsonian Museum until 2007.The vest has since been sent back to Korea and is currently on display to the public.Similarly, in 1590 Sir Henry Lee expected his Greenwich armor to be "pistol proof".