Patent ID: 8635785

Claim:
A midsole for a shoe of the type in which it constitutes a part of a shoe sole and includes an upper midsole and a lower midsole, the improvement comprising: a reinforcing member being embedded in between the upper midsole and the lower midsole; the reinforcing member including a foot-shaped reinforcing plate and a plurality of wings protruding from both sides of the reinforcing plate at a predetermined length, in which the wings are formed along an outer circumferential surface of the reinforcing plate at regular intervals, and outer ends of the wings are repeatedly rounded alternately upwards and downwards; a plurality of grooves being formed both sides of a bottom surface of the upper midsole, in which the grooves correspond to the upwardly rounded wings of the reinforcing member; a plurality of ribs being formed both sides of the lower midsole, in which the ribs extend from a central portion of the lower midsole to have free ends respectively and correspond to the downwardly rounded wings of the reinforcing member; and the wings being exposed to the outside of the midsole, wherein each of free ends of the ribs is attached to each of the downwardly rounded wings, thereby the downwardly rounded wings provide elastic responses freely and independently.