The reason may be that the logo is oxidized, so it is very easy to erase.

The insole in Irving 7 is glued to the sole and cannot be removed. Generally, there are many of these. The insole of the shoe is for better stability, anti-slip and to prevent it from moving around. It will be glued to the sole of the shoe. In this case, we can gently pull or soak the shoe. During the bubble process, the colloid will be decomposed by the water, and it will be easy to remove when carrying.