Pannier Liner Bags Calfornia 1400 Touring

Hi All,
I have just bought a 2018 California 1400 Touring. I am trying to buy liner bags to fit in the panniers, but cannot seem to trace any.
Does anyone have any ideas as to a supplier…or have any laying about that they wishtodispose of?
Cheers
Colin

Hi All,
Managed to get some pannier liners from Motorbike Passion in Italy. Hopefully arrive early next week…