Thank you for viewing our products. (^-^) [Product Description] ■ Surface: Gel This special insole allows you to create a proper arch for your feet. It fits perfectly to the arch of your foot, providing a comfortable fit just by inserting it as an insole. The excellent cushioning of the gel absorbs the impact on the arch of your foot. ■ Higher on the outside and lower on the inside The height difference structure correctly guides the balance during walking, correcting bad walking habits that cause O-leg walking. By using the insole, you will naturally become aware of your knees turning inward, and the effect of keeping your center of gravity inward will strengthen the muscles on the inside of your legs, which can also lead to a dieting effect. ■ Primarily suitable for O-legs, flat feet, plantar fasciitis, pronation, and knee pain. It can be widely used for standing work, on-site workers, commuting/going to school, walking, and sports! The gel insole has a shape that firmly wraps the heel and uses shock-absorbing material, protecting the soles of your feet from impact and friction. Tsubo massage reduces fatigue and maintains a good fit. You can enjoy a comfortable fit without feeling extra fatigue even if you wear shoes all day long or do intense sports. ■ Just by putting it in your favorite shoes or heels and walking, it stimulates the adductor muscles of your thighs and your calves. It supports your weight and stabilizes your knees, reducing knee pain, making it ideal for people who walk a lot, people who do a lot of standing work, and people who feel pain in their feet or knees! ※ If it gets dirty, wash it with water and let it air dry before using it again. M size is 23.5～24.5cm. ※Caution※ ・ As this is an overseas product, there may be rough sewing, imperfections, odors, and crushed outer boxes. Please refrain from purchasing if you are looking for a perfect product like a Japanese-made product. ・ The color may differ depending on the display environment of your PC. ・ Returns and cancellations due to customer reasons such as different sizes or images are not supported. ・ Outer box is not included. ・ If there are any defects or defective products upon arrival, please contact us before evaluation. ・ It will be shipped in simple packaging. Thank you. (^-^)