Universal attachment: Thanks to the universal attachment system, you can install any of these BAG-ROCK bags on almost any sissy bar, backrest or luggage rack. Internal shelf: The separately adjustable shelf divider ensures optimal organization of your load. You can move them up and down or remove them completely. Rain Protection: No more worrying about wet bags and items. The rain cover can be quickly unfolded and tightened to keep your luggage dry. When the weather is good, it can be easily stowed away. Carrying comfort: The integrated padded backpack straps are either integrated into a zippered pocket or part of a convertible shoulder strap system. The name Harley-Davidson®, Harley®, Buell®, various model names and model descriptions are mentioned for reference purposes only. Michael Orl.