Discovered these when searching for upper doors for my TJR...I wonder how close they really are to the Bestop Black Twill soft top...
https://www.autotopsdirect.com/1997-2006-TJ-Wrangler-Upper-Doors-Black-Twill-p/10-40-tj09706-35.htm
They also offer a top called 'Black Trilogy Acoustic Vinyl', which may be their version of the black twill top, but are not allowed to use that term by Bestop...I think the reason they can call the upper doors black twill is because Bestop doesn't make or offer those for a TJ.
https://www.autotopsdirect.com/1997-2006-TJ-Wrangler-Upper-Doors-Black-Twill-p/10-40-tj09706-35.htm
They also offer a top called 'Black Trilogy Acoustic Vinyl', which may be their version of the black twill top, but are not allowed to use that term by Bestop...I think the reason they can call the upper doors black twill is because Bestop doesn't make or offer those for a TJ.