This kind of thing similar to a small pillow is a kind of "belt". This kind of belt with kimono adds decorative color and enriches the already gorgeous kimono.
And because of Japanese habits, a woman's leg shape will be affected by kneeling for a long time. In order to make her figure look normal, this "special" object was designed on the kimono. Although it looks fat at the waist, it is much better than bowlegged. So the "pillow" behind can make women look more beautiful.
The history of the pillow behind kimono;
It is said that Japanese women in the Taoshan era in Japan liked to tie their waists with fine threads, but they were not promoted because of their poor image. The thin ribbon really rose in the era of Toyotomi Hideyoshi. When Toyotomi Hideyoshi was preparing to attack Korea, he was stationed in Nagoya. At that time, geisha wore a big bun, a small sleeve dress and a green and red cylindrical ribbon around her waist, which was very beautiful.
However, Japanese women soon found that the shortcomings of this knot appeared on the waist and the beautiful lines on the waist disappeared. The original purpose of this beautiful tape is to attract attention, so it has to be played bigger and bigger, and finally it is too big to see the toes. You walk like a beer belly, but it's inconvenient to move.
In the early edo period, Japanese women creatively moved the knot of their belts to the back. It is said that there were 289 common knots in belts at that time. As a result, with the passage of time, the "small pillow" behind today's Japanese kimono was finally formed.