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Men-yoroi (), also called menp? () or mengu (), are various types of facial armour that were worn by the samurai class and their retainers in feudal Japan. These include the somen, menp?, hanbo or hanpo, and happuri.
The men-yoroi, which covered all or part of the face, provided a way to secure the top-heavy kabuto (helmet). The Shinobi-no-o (chin cord) of the kabuto would be tied under the chin. Small hooks called ori-kugi or posts called odome located on various places would help secure the chin cord. The men-yoroi was constructed from iron, leather, or a combination of both. It had a lacquered or rusted type of finish and included a variety of facial details, such as a moustache, fierce teeth and a detachable nose. With the exception of the happuri, a men-yoroi had a small hole underneath the chin for sweat drainage.
S?men covered the entire face.
Menp? covered the face from the nose down to the chin.
Hanb? covered the lower face from under the nose to the chin.
Happuri covered the forehead and cheeks.