Once you are finished emptying your backpack, leave the pockets unzipped. [substeps] Set all of your belongings from inside the backpack in a plastic bag, so you can put it all back in after you clean your bag.
[header] How to wash a backpack [title] Empty your backpack. [step] You don't want to wash any items in your backpack that could be damaged by water. Turn your backpack inside out and use a small vacuum to clean the hard to reach interior corners of your backpack that might have small particles of dirt and garbage.