The first thing that annoys us is that the Waterproof Backpack
is stained with oil. If your Waterproof Backpack is colored, then we can use detergent to clean it, directly pour an appropriate amount of detergent and the pollution, and then use a texture with a lighter texture. The soft brush is dipped in water and then gently brushed. When the oil is gone, it can be washed with clean water. If it is a white Waterproof Backpack, we can use diluted bleach to clean it, and the effect is more obvious.