Abstract: A shoe including a shoe body having an outsole defining a receiving chamber, and an upper fastened to the outsole; an insole formed as an air bag filled with air; and a pressure gauge mounted on and exposed from the upper of the shoe body and connected to the insole to measure the pressure applied to the insole.

Abstract: A shoe including a shoe body having an outsold and an upper fastened to the outsole; an insole formed as an air bag filled with air and mounted within the outsole; a pressure inductor connected to the insole to detect the pressure applied to the insole; a circuit board mounted in the insole and consisting of a pressure converter and a microprocessor, the pressure converter converting the pressure detected by the pressure inductor into a frequency signal to be processed by the microprocessor so that the microprocessor obtains a value corresponding to the pressure applied to the insole; and a liquid crystal display connected to the microprocessor to display the value obtained by the microprocessor.