Saddlebags, top cases, tour packs, or panniers. Whatever kind of motorcycle luggage you have that is attached to the bike, you should consider using liners with them. Pannier liners make packing, unpacking, and moving in and out of hotels and tents easier. Even if your hard luggage is easily removable from the bike, as most of the modern BMW panniers are, by using liners, you will protect the paint on them by not hauling them in and out of the place you are staying.
What makes a good liner? Durability, functionality, and fit. The bags I review in this video are made by Kathy’s Journey Designs and I have used them for two years prior to selling them. They have stood up to everything I have asked. Take a look at the video below and let me know what pannier liners you use.