Cnemides are a piece of protective armor worn on the shins, often used in ancient Greek and Roman warfare. Synonyms for this term include greaves, shin guards, leg armor, and leg protectors. Greaves were made from materials such as leather, bronze, or iron and were strapped around the lower leg to protect the wearer against sword blows or spear jabs. Leg armor was used by warriors as early as the 2nd millennium BCE and continued to be utilized in various forms throughout the medieval period. While cnemides are not commonly used in modern warfare, the term has become synonymous with the concept of protection for the shins.