Personally I didn't want covers to go on top of the OEM ones, I wanted new OEM skins in GTi fabric. If I want to "mud proof" the seats I'd use seat covers (the plain loose fit type that are easily fitted and removed).I have a 2019 T6, and tried some Inka skins on it - for the rear bench seat but they did not fit - it was far too tight, and likely to rip and the head rest holes did not line up. has anyone found any covers which fit and are well priced?
If you're interested in new VW replacements with your choice of centre fabric, I can give you the details.

New OEM seat skins with GTi tartan
I've just bought some brand new OEM seat skins from the guy in the link. He added genuine GTi fabric. Professionally fitted at a great price. (My seats in the photos linked below). https://www.facebook.com/groups/1959511150967216/permalink/2867616716823317/