The insole in Owen 7 is glued to the sole and cannot be removed. Generally speaking, there are many of them. The insole of the shoe is for better stability, anti-slip and preventing it from running around. He will use this glue to stick to the sole. In this case, we can gently pull or soak the shoe. In the process of foaming, chewing gum will be decomposed by this water, and it is easy to take it off at this time.