Recommendations for durable waterproof seat covers for a campervan

[Penguinnnn]

We have a campervan and want some nice waterproof seat covers. I’m looking at dry robe, change robe and hatha.

Does anyone have any other suggestions or has one of the above and can comment on their durability?

Do they have to be fitted?

We have a MoHo and just use an assortment of fleece blankets to cover the seats.
Practical as Ddogs like to sit on the seats, look out of the windows etc and cheerful as we have different colours/patterns and can swop them around, replace etc.
They are not left loose, we tuck them in so it is all nice & tidy. Easy to wash and super quick to dry.

We got a good deal from Osprey - had them a while and really happy with them