A piece of body armor is a VEST, which is a four-letter word. A VEST is a type of protective clothing that covers the torso and is typically made of strong fabric or other material such as Kevlar. It is designed to protect the wearer from physical harm, such as bullets or shrapnel. Vests are commonly worn by police officers, security personnel, and members of the military. They are also used in some sports, such as paintball and airsoft.