Don't think I ever seen a horizontal pattern before.
Might be something you have to get custom done by a upholstery shop. Its what I am looking at when I get to that stage I want to locate a OE bench seat and have it covered in dark blue leather to match my interior. Could go vinyl but it just doesn't last.
I thought of saddle blanket myself but not sure if cloth would be long lasting.
"Old Blue" - '56 Fairlane Town Sedan - 292-4V, Ford-O-Matic transmission, 3.22:1
'63 Belair 2dr sdn - 283-4V, Powerglide transmission, 4.56:1
'78 Cougar XR7 - 351-2V, FMX transmission, 2.75:1 9inch
"Bruno" - '82 F150 Flareside - 302-2V, C6 transmission, 2.75:1 9inch, 31x10.50-15 BFG KO2