Chain-mail is a type of armor made up of interlocking rings that are woven together in a pattern to create a protective layer. Synonyms for the word "chain-mail" include chain armor, chain shirt, chain vest, and ring armor. These alternative terms are commonly used to refer to the protective garments worn by knights and other warriors throughout history. While chain-mail was the most popular form of armor during the medieval era, other types of armor such as plate and leather were also used. Today, chain-mail remains popular in the cosplay and reenactment communities for its realistic appearance and historical significance.