This is a exotic 'zentsu'(fully patterned) Fukuro obi
with 'karabana'(imaginary flower in China) on vertical stripe pattern, which is woven.
There is no kaikiri lines(end mark line) and it can be tied with both ways.
Textile is exquisite silk and has soft touch.
There is not folding lines and it seems to be untied one.
Although not shown on the photo and figure, it has prominent creases by long-term preservation.
Please check detail photos.
Please enjoy its stylish fashion!