I have an old letter jacket that was stored away for years. When I found it the arms of the jacket felt greasy or slimly. I took it to the dry cleaners because itís in great shape. It came back OK but now itís been hanging around for about a year, and the sleeves or arms which are vinyl feel greasy, There must be some kind of deterioration going on with this vinyl. Does anyone know how to stop this deterioration process, or what may be happening with this jacket. Thanks The Wooddude