Sole structure and shoe including same

A sole structure for a shoe, the sole structure comprising a sole body, wherein

• a support is provided to the sole body,
• the support includes:
• an upper plate configured to support a foot of a wearer;
• a lower plate provided below the upper plate;
• and
• a buffer member which is elastically deformable, provided between the upper plate and the lower plate, and has a lower Young's modulus than the upper plate and the lower plate,
• the lower plate includes a bulge which is elastically deformable, and a bottom of which protrudes downward,
• the buffer member includes a deformation space provided above the bulge and extending through the buffer member in a direction perpendicular to a thickness direction of the sole body, the deformation space being a hollow or in a shape of a recess, and
• the support is configured such that the bulge is allowed to elastically deform toward the deformation space due to the deformation space when the deformation space is in an open state, and that the bulge is allowed to elastically deform upward and the buffer member is compressively deformed when the deformation space is in a closed state.