If it is too dirty, use a neutral detergent to clean the backpack and put it in a cool place to air dry, but avoid exposure for too long, because ultraviolet rays can hurt the nylon cloth's hiking process.
Still pay attention to basic maintenance. If the backpack is scratched, it must be stitched immediately. A thicker needle thread is needed. The needles used to sew the seat cushion must be sewn firmly. The specific method is as follows:
1. Use a small brush to clean the floating soil. It is suitable for backpacks with only floating ash.
2. Wipe with a soft towel moistened with water and dry it. It is suitable for backpacks with ordinary stains (such as mud).
3, Soak in a large basin for a few days, and then rinse repeatedly, suitable for relatively dirty backpacks.
4. Remove the washing machine with the carrying system, suitable for lazy people with clean habit.