The most traditional and popular Obi in Japan.
This traditional design is called Kenjo and each pattern has a meaning:
The thick lines represent the parents and the thin ones the children. The thick lines enclose the thin ones, representing the parents’ protection and care towards their children, and in the middle the thin lines enclose the thick ones, representing the children’s care and duty towards their parents.
The other two patterns represent the design of a flower base used in Buddhist ceremonial called Hanazara and the image of a rolling Dokko, a Buddhist small instrument used for the monks.