<b>About Shoes Insoles: </b><br> <b>✔ Premium Material</b> ---- High quality memory foam offer longer durability, better rebound resilience and not easily deformed. <br> <b>✔ Ultrasoft &Ultralight</b> ---- Ultrasoft and ultralight memory foam, providing great shock absorption and cushion, antiskid. <br> <b>✔ Better air circulation</b> ---- insoles designed with stoma and mesh fabric on the surface to offer better air circulation to make your feet airy and fresh. <br> <b>✔ Scientific Design</b> ---- Scientific arch support design in the center reduce pain of feet, ideal for flatfoot, plantar fasciitis, suit for men and women for everyday use. <br> <b>✔ Versatile</b> ---- Great to replace your original insoles of athletic shoes, casual shoes, outdoor shoes, boots and working shoes. <br> <b>✔ Easily Trimmed To Any Size</b> ---- Insoles are easily trimmed with sissors to suitable size. <br> <b>✔ Risk-Free</b> ---- We offer free return if you are not satisfied with the product. If you have any question about the product, please feel free to contact us, you will get reply within 12 hours. <br><br> <b>Size Information: </b><br> Size L (Length 30.5cm, US Men's Size 8-12 / Women's Size 10-15) <br> Size M (Length 27cm, US Men's Size 6-9 / Women's Size 7-11) <br> Size S (Length 23.5cm, US Women's size 5-6) <br> Thickness of half sole is 0.16 inches(0.4cm), thickness of heelpiece is 0.43 inches(1.1cm), other parts dimension please check the last two image. <br> <b><br>Instruction for Use: </b><br> remove the original insoles from your shoes. <br> place the new insoles with the original insoles back to back. <br> align the two insoles by lining up the back of the heel. <br> use a mark pen to draw a cutting line by tracing along the toe section of the original insole. <br> cut the insoles along the cutting line. <br>