Rs200 seat cleaning

I have in my rs200 standard seats, they are black but the upper and lower inside part is white.
So, does anyone have any advice with what would the best to clean the white part of the seats - for example sonax, armorall or something else...?

Thanks
 
...one of those carpet/upholstery foam that you can vacuum off....in my experience if you have to rub the standard seats you will pull them and you'll get bobbles....!!