I've had the Deker Supreme, Kuryakn Gran Tourer and several others mentioned. They all have nice features.....one even had a handle and wheels.
But riding long distances I quickly learned a couple of things......I pack so much of the creature comforts that I need the lightest bag possible. I also sometimes buy odd shaped things and the luggage that has a shape or form type frame just makes anything other than clothes hard to pack.
I just keep going back to the first tour pack bag model that I first bought maybe fifteen years ago. This is my second one of that model. It is water resistant (I think one corner my clothes got damp in a really driving rain that I got stuck in for hours) and the great thing is that the bottom has a zipper that goes all the way around and it actually expands another 3" taller than what you see in this pic.
An added safety feature......it has a large reflective strip that goes all the way across the back so you can't be missed at night. It has four very large (wide) velcro straps plus an adjustable strap that I loop through the tour pack rack before fastening, just as an added safety feature.
