This is a Tsumugi Fukuro obi
with checker board pattern, which is made of kiribame (patchwork) technique.
Textile is Tsumugi
silk and has soft but nubby touch with rustic atmosphere.
Lining is not added inside.
The patinas on otaiko are small but prominent, and they will appear when tied.(A)
Other patinas can be hidden when tied.
Besides it has slight folding lines.
Please check photos for details.
If these flaws do not bother you, it could be still worn.
Please enjoy its stylish fashion!