Using this top tube bag is easy. First, find a suitable spot on your bike's top tube and securely fasten the bag. When you need to access your items, just use the magnetic flip - top opening. It'll give you a clear view of what's inside. Remember, since it's waterproof, you don't have to worry about light rain or splashes getting your stuff wet. However, don't submerge it in water. For maintenance, simply wipe it down with a damp cloth after use to keep it clean. If there are stubborn stains, use a mild soap. Store it in a dry place when not in use to prolong its lifespan.