Samurai armor costumes in anime cosplay draw from feudal Japan, featuring layered plates, helmets with crests, katana props, and intricate shoulder guards. Characteristics: metallic or faux leather materials for durability, bold red, black, or gold colors, detailed embroidery or engravings. Popular in historical or fantasy series like Rurouni Kenshin, they embody honor and warrior spirit, ideal for dramatic, imposing convention appearances.