This is the kind of padding I decided to use on my interior panels. This is the old door panel padding that I replaced to make my door panels. I decided it was a little to dirty. Some of you have seen the door panels I finished a couple of days ago. It is just some material I picked up at the local arts and crafts store here. It is almost what you would find in a bed spread with down in it. So I'm assuming what ever they make it out of. Synthetic cotton?? You'll know what I mean. With real thin plastic or vinyl layer on top holding it together. I hope I'm making sense. Like I said I picked it up at the local arts and crafts store. But they had this exact stuff at the local store.