This is a Tsumugi Fukuro obi
with large circle and stream pattern, which is woven.
The chic modern pattern emerges out against the base.
Textile is Tsumugi
silk and has soft but nubby touch with rustic atmosphere.
The length is rather short, 164.6in(418cm).
Although not shown on the figure, it has folding lines on 'taresaki'(end of wide part).(They can be hidden, when tied.)
For the details, please refer to the photos and figure.
It's still wearable enough with very good condition.
Please enjoy its stylish fashion!