This is a high cost-effective insole, with correction function. The bottom bracket supports the arch well, effectively improving the pain of fasciitis. At the same time, the two-color foam design has a good rebound for the foot, which is conducive to relieve the foot movement fatigue. The heel silicone gasket reduces the pressure of the heel. The gray mesh has the function of absorbing sweat and ventilating, and keeps dry all the time. You can cut freely according to the size of your shoes.