I have the Cee Bailey liners. Be aware that the liners will hold more than the hard bags will. I found that out the hard way when I had to download stuff from the liner in order to get the hard bag closed. I agree with the opinion that they are really nothing more than "a pillow case with a zipper", however they actually have two outside zippers, and an internal zipped section, and an external mesh pocket. They are nice, but I wish they were a bit more rigid in shape.