Using this top tube bag is a piece of cake. Just unzip it using the one - hand - operable zippers and put in your frequently used items like energy bars or small tools. For energy bars and gels, use the side outer pockets and don't forget to keep the packaging there too to keep the trails clean. When it comes to organization, use the internal mesh pockets to sort out your stuff. As for maintenance, it's quite simple. Since it's made of durable Nylon Robic, a gentle wipe with a damp cloth should do the trick if it gets dirty. Avoid using harsh chemicals as they might damage the PU coating. Also, when adjusting the Velcro straps, be careful not to over - tighten them to prevent any damage to the Hypalon reinforcement. Store it in a dry place when not in use.