1-40 《Brand New》 Size: L [Supervised by a Practicing Physical Therapist] Have you experienced pain in your ankles or knees with conventional rigid arch supports? Supervised by a physical therapist with over 10 years of experience, this "soft-hard" insole was created. [Soft-Hard Arch Support] Simply insert it into your usual shoes, and the soft-hard arch support will firmly and gently support your arch, creating the arch of your foot and supporting your balance. [Soft on Ankles and Knees] With arch supports that are too rigid, the ankle can turn outward, causing pain in the ankles and knees. This insole supports your feet with a soft-hard arch support and outer arch support. [Gel Material Cushioning] In addition to the cushioning on the surface of the insole, there is also cushioning using gel material on the back, so it can be used even for light exercise.