Using the Blackburn Outpost Top Tube Bag is easy. First, use the quick - mount top tube straps to attach it to your bike. You can adjust the organizer inside the bag to fit your items the way you like. Put your phone or camera in the exterior mesh pocket for easy access. Keep your ID and cash in the zippered pocket. When it comes to maintenance, clean it with a mild soap and water when it gets dirty. Avoid using harsh chemicals. After cleaning, let it dry completely before using it again. Also, be careful not to overfill the bag as it may affect its stability on the bike.