Southbound trimmers in the UK officially refer to this fabric as Recaro "B80 Sport Cloth".
They provided a sample when I was looking to have my 968 Clubsport Recaro seats recovered.
See pricelist below:
https://www.southboundtrimmers.com/files/Trade%20Pricelist%202024.pdf
Can't tell for certain, but it also looks very similar to the Recaro "Avus" fabric listed here:
https://www.ebay.co.uk/itm/226409881652