Using your Hiko pannier bag is a breeze. First, open the roll - up top to put your items inside. The large 23L capacity gives you plenty of room for your stuff. When you're done loading, roll the top down tightly and secure it to keep water out. Attach the bag to your bike's rear carrier using the quick - release clips. Adjust the side - to - side clips to fit your carrier's tubes, which can be between 8mm and 14mm. You can also carry it by the handle strap or use the over - the - shoulder strap when off the bike. As for maintenance, after use in wet conditions, dry the bag thoroughly to prevent mold. Clean it with a mild soap and water if it gets dirty. Make sure to check the clips regularly to ensure they're working properly and replace them if they're damaged.