Go here and read:
https://www.matthewsvolvosite.com/fo...hp?f=9&t=84970
The "best" answer was buying a new "hide assembly" from Volvo.
Months before I read the thread I took my seat out and brought it to a reupholstery shop. They did a perfect job but the Volvo parts might have been cheaper. You needn't fret because Teterboro is 3,335 mi. from you.