The sarashi, or torso wrapping was traditionally worn to make battlefield injury more difficult.
Like the obi, a sarashi consists of a length of thick cotton, wrapped around the midriff up to the chest.
The sarashi was used to help secure the Do while wearing multiple katana or katana & wakizashi in combination.
This useful length of cotton wrap could also be used as a battlefield dressing and Samurai women in feudal Japan could also wear a sarashi to bind their breasts.
Average length is 400 x 30 cm.