Using this Evoc frame pack is a breeze. First, find the top tube of your bike. Use the 5 - point hook and loop fixtures to attach the pack firmly to it. You can put your rain jacket, pump, and inner tube inside. For smaller parts like spare nuts or bolts, use the two compartments with a partition. The left lateral compartment with 3 mesh pockets is great for items you want to access quickly. When it comes to maintenance, since the material is water - repellent, a simple wipe with a damp cloth should do the trick if it gets dirty. Just make sure to keep it away from sharp objects to avoid any tears or scratches. And don't overstuff it beyond its 3.5 - litre capacity as it might affect its durability and how well it attaches to the bike.