Sole and shoe

A sole constituting a part of a shoe,

• the sole comprising
• a midsole that is configured to support a wearer's foot, wherein
• the midsole includes:
• a toe support portion that is configured to support a toe of the wearer's foot;
• a midfoot support portion that is configured to support a midfoot portion of the wearer's foot;
• and
• an intervening portion interposed between the toe support portion and the midfoot support portion,
• the sole includes:
• a toe contact surface that overlaps the toe support portion in a thickness direction of the sole and constitutes a contact surface;
• and
• a midfoot contact surface that overlaps the midfoot support portion in the thickness direction and constitutes a contact surface,
• the intervening portion includes a recessed portion having a shape recessed toward the wearer's foot from an imaginary curved surface connecting the toe contact surface and the midfoot contact surface,
• a length between the imaginary curved surface and the recessed portion is greater than or equal to 13% and less than or equal to 50% of a thickness of a portion of the intervening portion where the recessed portion is provided,
• the midsole has a front side region surrounded by a front line and a rear line, the front line passing through a first portion that is located on a shoe center and at 5% of a total length of the midsole from a front end portion of the midsole toward a rear side in a foot length direction of the sole, and being orthogonal to the shoe center, and the rear line passing through a second portion that is located on the shoe center and at 30% of the total length of the midsole from the front end portion toward the rear side in the foot length direction, and being orthogonal to the shoe center,
• an area of the recessed portion in plan view is greater than or equal to 35% and less than or equal to 50% of an area of the front side region in plan view, and
• the recessed portion is entirely positioned in a region extending greater than the 5% and less than the 30% of the total length of the midsole from the front end portion of the midsole toward the rear side in the foot length direction.