Vintage silk obi age. Silk shibori.
Shibori is a very unique Japanese weaving technique that creates bumpy textures. Stretchy.
Obi age is like scarf. It is used to wrap obi makura (pillow) and tied just above obi. It gets tucked in under obi so you only show a little bit of it.
Very clean but it is vintage so not perfect.
It can be used as a fashionable scarf as well.
17cm x 76cm = 6.7"x30"