Well it wouldn’t be my choice. But it depends on the pattern and the outcome you want. Can you imagine the bag made in that fabric? I always think the main fabric needs to be be fairly strong. An evening bag could be more delicate than a general bag used every day where it might get a lot of wear being stuck on the floor, thrown in the car etc. I know lots of bags are made from quilting cotton. I prefer making them from cotton canvas if I can get it. Bit tougher. But there’s not a lot choice. But as I say, depends what you’re after…..and of course the thickness of the polyester.