From a physics standpoint, vacuum packing does not increase the weight of your luggage; in fact, it slightly decreases it by removing the mass of the air trapped between your clothes. However, the common "trap" for travelers is that vacuum bags allow you to fit significantly more items into the same physical space. Because you are essentially "shrinking" the volume of your clothing, you might find yourself adding more garments to fill the extra room in your suitcase. This leads to a much denser and heavier bag that can easily exceed airline weight limits. While the process of sucking out the air makes the bag more compact and easier to manage, the net weight is entirely dependent on the physical mass of the items you pack. It is always wise to weigh your bag with a scale after vacuum sealing to ensure the increased density hasn't pushed you over the 23kg or 32kg limit.