I think the best way to explain this is like a scuba weight but with no stretch. It is a cotton acrylic satin backed with a heavy white layer that gives it a heavier weight for sculptural and sleek smooth lines. From MM I believe. I see a coat or evening jacket maybe with a peplum. It is thick, like 4 layers of duchess satin. You could forgo consideration of grainline here and just cut which will save fabric.
