Side window or windshield shade/visor? Is yours the Carefree brand visor or something else, e.g.MCD? Carefree has a newer Smart Visor and Maxi Visor product that might be able to replace your old one (with some extra effort because they are not identical).
Power SmartVisor - Carefree of Colorado
There are also some on Amazon but mostly narrower sizes than typical for windshield visor.
Former owner of 2004 American Tradition and several other RVs
Home is in the Ocala Nat'l Forest near Ocala, FL
Summers in Black Mountain, NC