Vintage tunic top cover up white w purple flowers

Vintage white with purple flowers sheer top or cover up, 6 1/2" opening on the sides, no labels, listing as a size M, see measurements, material listing as either high end polyester or could be silk, excellent condition, measurements; length 33", shoulder/shoulder 15” shoulder/cuff 21” bust 20", measured flat, no trade, smoke and pet free environment ..# I