Body armor is a type of personal protective equipment designed to absorb or deflect physical attacks. It is commonly used by military personnel, law enforcement officers, and security professionals to protect against firearms and other weapons. The materials used in body armor can vary, with options ranging from soft fabrics to hard plates made of ceramics or metals. The effectiveness of body armor is often rated based on its ability to withstand different types of ammunition. For instance, NIJ (National Institute of Justice) standards classify body armor into various levels, indicating the degree of protection it offers. Proper fit and wear are crucial for maximizing safety and comfort.