Shirizaya

Shirizaya a type of attire used by the samurai class around the times of the Sengoku period of Japan. Shirizaya translated as being a scabbard cover. These scabbard covers generally varied from various animal skins, such as the fur of bear, deer, or tiger. Shirizaya were used by all class of samurai throughout the earlier times. However, throughout a later period, Shirizaya were only authorized for use to the higher ranked officers of the military.

References

"The Samurai Sourcebook"