If the storage space is not sufficient despite various pockets, such as frame pockets, luggage carrier bags, saddlebags or handlebar bags, the next option is the backpack. Rucksacks are available in many different variants. In addition to the classic backpack, there is the hydration pack, which reliably supplies you with water through the drinking tube through a water bubble. If you are looking for a backpack for longer trips, it is advisable to buy a waterproof or splash-proof bag or at least do not to waive the watertight coating when buying.