This is a test of commonsense. Complete the next sentence:

How to pack a light backpack for backpacking
Try out a smaller backpack.
Backpacks of a smaller size force you to leave more at home. Some come with less excess material, such as belts, pockets, padding, and a weight-distribution frame.
Choose a pack that is an appropriate size for your trip. Keep in mind, however, that larger packs, such as those with frames, might feel better to wear due to better weight balancing and more comfortable strap material.