If it is too dirty, the backpack can be washed with a neutral detergent and then placed in a cool place to air dry, but avoid exposure for too long, because ultraviolet rays will damage the nylon cloth. The specific method is as follows:
- Use a small brush to clean the floating soil, suitable for backpacks with only floating dust.
- Wipe with a soft towel dipped in water, and then dry, suitable for backpacks with ordinary stains.
- Soak in a large basin for a few days, then rinse again and again, suitable for dirty backpacks.
- Remove the carrying system and wash it with a washing machine, suitable for lazy people with cleanliness.