technology of Japanese body armour, and some were made of mail sewn to a cloth lining (a form called ). The was secured to the head by a chin cord called , which would usually be tied to posts or hooks on the (facial armour) or simply tied under the chin. are often adorned with crests called or ; the four types of decorations were the (frontal decoration), (side decorations), (top decoration), and (rear decoration). These can be family crests (mon), or flat or sculptural objects representing animals, mythical entities, prayers or other symbols. Horns are particularly common, and many kabuto incorporate , stylized antlers. Types of kabuto Suji bachi kabuto is a multiple-plate type of Japanese helmet with raised ridges or ribs showing where the helmet plates come together; the rivets may be filed flat or they may be left showing, as in the . Hoshi-bachi kabuto (star helmet bowl) with protruding rivet heads, have large rivets (), small rivets () and a rivet with a chrysantemoid-shaped washer at its base (). could also be if there were raised ribs or ridges showing where the helmet plates came together. Hari bachi kabuto is multiple-plate Japanese with no ribs or ridges showing where the helmet plates come and the rivets are filed flush. Zunari kabuto The is a simple, five-plate design. Tatami kabuto A great number of simpler, lightweight, folding, portable armours for lower-ranking samurai and foot soldiers () were also produced. These were called armour, and some featured collapsible (also called ), made from articulated lames. did not use rivets in their construction; instead, lacing or chain mail was used to connect the pieces to each other. Kaji kabuto were a type of helmet worn by samurai firemen. Jingasa were war hats made in a variety of shapes, worn by (foot soldiers) and samurai, which could be made from leather or metal. Kawari kabuto, or strange helmet During the Momoyama period of intense civil warfare, kabuto were made to a simpler design of three or four plates, lacking many of the ornamental features of earlier helmets. To offset the plain, utilitarian form of the new helmet, and to provide visibility and presence on the battlefield, armorers began to build fantastic shapes on top of the simple helmets in (papier-mâché mixed with lacquer over a wooden armature), though some were constructed entirely of iron. These shapes mimicked forms from Japanese