Sissy Bar Bag Features : These will look great on your bike! This bag is excellent for those last minute trips. This bag has one adjustable Velcro strap and also has 2 adjustable buckles (as shown in picture). This bag is designed to hold your supplies without a lot of bulk. This motorcycle bag is truly rugged and made to last! The rugged construction and storage space in this amazing bag will meet and surpass the needs of even the most discerning packers. Every biker needs a good set of luggage for keeping their belongings safe while riding motorcycles.The PVC is rugged so it will last for many years. Each bag is waterproof so all of your belongings will stay safe and dry while in your motorcycle. This is great stuff on vacations, to sporting events, picnics, perfect for travel, sports, gym, overnight, airlines, camping, mountaineering etc. This is a great way to travel! This bag also makes a perfect gift . Installation Instructions: Just to note that this bag can be installed behind the Sissy Bar but will need a luggage rack or Sissy T Bar for bottom support or sitting on the pillion seat attached to the Sissy Bar.