Tatami (Japanese armour) the other related parts of a full suit of Japanese armour. Collapsible head protection such as "" and other collapsible armor are also "tatami" armor; a traditional kabuto could also be part of a tatami gusoku. Tatami armour was lightweight, portable, convenient for transportation, and they were manufactured inexpensively for the ashigaru light infantry. Tatami armours were worn by all samurai classes from the highest class to the lowest class. The higher class samurai wore elaborate armour while the lower class samurai and retainers wore simpler versions. In his book "Arms and Armor of the Samurai: The History of Weaponry
Sallet it was retained into the mid century, in a heavily reinforced form, for some types of jousting. The German-style sallet was the model for the World War I German "Stahlhelm", whereas the kettle hat inspired the contemporary British and French helmets. The sallet was the forerunner of the modern combat helmet and firefighter's helmet. Sallet The sallet (also called "celata," "salade" and "schaller") was a war helmet that replaced the bascinet in Italy, western and northern Europe and Hungary during the mid-15th century. In Italy, France and England the armet helmet was also popular, but in Germany the sallet became