This is a Tsumugi Nagoya obi
style motif, which is dyed.
Textile is Tsumugi
silk, and it has soft to the touch.
Lining of the triangle part has a seam.
Dyestuff stains (A) are seen on one side(Kansai) of Maegara and rather disturbing.
Dyestuff stain on the other side(Kanto) does not stand out as much.
It has some other flaws as shown on photos.
Please see photos for details.
Although it has some flaws as mentioned, it still is a very charming item to wear!