Using this top tube bag is a breeze. First, adjust the Velcro straps on the Hypalon - reinforced bottom and front of the bag to fit it securely on your bike's top tube. Then, you can start filling it up. Put your frequently used items like energy bars and gels in the side outer pockets. When you need to access the main compartment, use the Hypalon - loop - connected YKK zippers to open them with one hand. The bright - colored inner lining will help you quickly spot what you're looking for. For organization, use the internal mesh pockets. As for maintenance, keep it clean by wiping it with a damp cloth. Avoid using harsh chemicals that could damage the Nylon Robic fabric or the PU coating. If it gets wet, let it dry naturally in a well - ventilated area. Be careful not to overstuff the bag to maintain its shape and functionality.