Vintage Contempoary Collection Made in USA Lace trim powder blue

Vintage Contemporary Made in USA powder blue cover up for cool nights. Loved this so soft and elegant. Completely surrounded with delicate white lace to bottom. Has semi capped lace sleeves. I washed on delicate and hung to dry. The inside label info is not legible. Therefore, I don’t know if it is silk or satin but beautiful to slip into bed in or put around the house after a shower Measurements 25 inches across shoulders and 27 inches from armpit down. Quite sure size M Bottom has one inch hem. Has 2 deep side pockets. Has attached inside string tie. Has side loop for string belt which I never used