A shoe including a mid-sole layer, a lower layer, an air compression cavity, an air envelope, a shoe pad, an inner and outer vamp and an ornament. The air envelope is connected to the air compression cavity via an air-transmission tube which extends from the air compression cavity, passes through the mid-sole layer, is layered between the front end and outer inner of the vamp and extends through to the upper side of the vamp. The air compression cavity is set between the mid-sole layer and the shoe pad corresponding to the position of the heel portion of the shoe so that the air compression cavity is compressed and decompressed periodly as the wearer is walking. The ornament is adhered to the air envelope and is vibrated up and down via the air forced in and out by the air compression cavity in walking.