This is a vintage juban(undergarment).
Lovely flower pattern is dyed on graceful purple background.
Textile is 'kinsha'(very fine crepe) silk and has soft touch.
Unfortunately it has big holes on the left front and so it may not be suitable to wear anymore. However it will be a wonderful material for handicraft.
It has some other flaws so please check details with photos and the figure.
*Approx background color - HTML code ( 2E1D9B)
Softness ( Exceptionally Soft,□ Soft, Medium, Comparatively Stiff, Stiff )