How to wash by hand
1. Before washing it, turn the backpack upside down and shake or vacuum it
2. Fill a large basin with lukewarm water, max 30°C
3. Use a gentle detergent
4. Submerge the backpack
5. If necessary, give it a gentle scrub with a cloth, brush, or sponge
6. Rinse the backpack thoroughly, i.e. using the shower
7. Dry off the backpack with a towel
8. Hang the backpack to dry, upside down (do not use a tumble dryer)