I saw a quilt just two weeks ago with the airtex 50/50 wool/cotton batting. The lady said the bag said washable. She washed her quilt when it was finished. The batting came through both the top and backing and the whole thing shrunk. It looked so terrible and the woman was just sick about it. There was no batting left inside. It was all pulled to the outside. Looked like a bunch of dogs and cats shed all over it.