Kōkaku is a term that refers to a type of Japanese armor, specifically designed for use in the late medieval period. It is characterized by its distinctive construction, which includes overlapping plates that provide flexibility and protection. Kōkaku armor was often worn by samurai during battles and was an important part of their military attire. The design of Kōkaku armor reflects the craftsmanship of the time, incorporating both functionality and aesthetic appeal. It often featured intricate decorations and was made from materials like iron and leather. This armor is a significant aspect of Japanese history and showcases the evolution of samurai warfare.