Long white fluffy sleeveless sweater

This is a sweater by Alya. It is very fluffy and I think it is a duster coat(?) but only reaches to about the knees. It is lightweight and sleeveless so almost like a long vest. The pictures do not do it justice! I’ve had it for a while, but it is not discolored or piling. I would wear it to complement slightly more formal winter dresses.