This is a Tsumugi
Silk Bolt for Kimono and Haori ensembles.
It has 'Koushi' (lattice) and flowers pattern, which is woven.
Textile is Tsumugi
silk, and it has soft to the touch.
Actual color is slight greenish and has less blue than shown on photos.
There is a small hole, 3mm, at about 10cm(3.9in) from one end. (sorry no photos)
Both edges are discolored in full length.
There are also stains on the same end.
Please see photos for details.
It must be an amazing handicraft material!