Designed for people who participate in a range of athletic activities where they experience muscle fatigue in the feet and legs. Our insoles will reduce stress on your lower body joints and keep you on your feet longer. They provide excellent support, improved motion control and side-to-side stability. Features - Color: As Shown. - Material: Cowhide. - Size 37-38: About 24x8.5x0.35cm. - Size 39-40: About 25x8.6x0.35cm. - Size 41-42: About 26x8.8x0.35cm. - Size 43-44: About 27x9.5x0.35cm. - Size 45-46: About 28x9.8x0.35cm. - Made of material, durable and practical, long service life and easy to use. - Designed for people who participate in a range of athletic activities where they experience muscle fatigue in the feet and legs. - Our insoles will reduce stress on your lower body joints and keep you on your feet longer. - They provide excellent support, improved motion control and side-to-side stability. - Ingenious design, improve foot force, relieve foot pressure. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you.