I have the Tourpak liner, it was stock on the Ultra. I don't think I'd want the felt saddlebag liner as it would likely make it difficult to slide the travel bags into them.
I have both the tour pak liner and the saddlebag liners. they are the same material and form. I like em both a lot. Keeps things from rattluing around and you CAN use the luggage liners with em also. Gives a nice finished look
I have 'em both for my hardbags and Full King TP. Same material. Theywork as advertised. Tried making my own but just didnt work out nearly as well as the fitted liners from HD.