Restoring a cloth ragtop

Hi! My Dad Owns A 96 Caddy With A Cloth Ragtop (black) Just Wondering If You All Have Any Ideas About How To Restore That Cloth Top And Make It Look New Again. We Took It To A Detail Shop And A Caddy Dealer They Don't Have Anything For That Top. Tring To Avoid Paying The Big Bucks For A New Top! (any Ideas Whould Be Great! Thank You!