This fabric was a tablecloth. It is probably 100% cotton. It has been laundered many times so it will not shrink. Launder with care on gentle cycle, cool water and dry slightly. Then hang to finish drying. Might need a little ironing if you want a crisp look.

The front looks like a simple sleeveless blouse, but the back has a wrap panel which is quite fun and makes the blouse very comfortable to wear.