Pillion Back Rest Mandello S

I would like to fit a pillion back rest to 2023 Mandello S. I have MG panniers which dont seem compatible with some top box racks which could be a solution with a backrest pad. Or just a Sissy bar ?
Any ideas ?
Much appreciated.

I wanted to do similar for my 2024 Stelvio but didn’t want a topbox permanently on my bike or when I was just out for a two-up pleasure ride.

Ended up buying a cheap scooter backrest, designing a mounting plate and having it fabricated in aluminium sheet.

It looks ok and provides a comfortable backrest. It’s not fitted at the moment but here is the only photo I have that features it.

Many thanks for the info. I agree, I don’t really want a top box just a back rest for my wife.

Colin.