Sole for a shoe, in particular for a running shoe

A sole for a running shoe for a foot of a wearer having cuneiform bones and a plurality of metatarsal phalanges, the sole comprising:

• a midsole having a heel portion, an arch portion, and a forefoot portion, the midsole having:
• a foot facing surface, and
• an outsole facing surface including:
• a plurality of flex grooves that extend into a material of the midsole, the plurality of flex grooves crossing each other and creating a plurality of discrete pads in the midsole, such that each pad is separated from other pads by at least one flex groove, and
• a curved forefoot flex groove extending into the material of the midsole in a direction towards the foot facing surface, the curved forefoot flex groove having a first terminal end on a medial side of the arch portion and being oriented such that, when the wearer is wearing a shoe with the sole, the curved forefoot flex groove follows an uninterrupted path towards the forefoot portion over one or more of the cuneiform bones and continuing between a third metatarsal phalange and a fourth metatarsal phalange of the wearer, thereby providing an increased flexibility in the forefoot portion of the shoe, and the curved forefoot flex groove being further oriented to continue towards a second terminal end in the forefoot portion;
• and
• an outsole including a plurality of discrete outsole elements separated from each other by at least one flex groove,
• wherein the plurality of discrete pads in the midsole and the plurality of discrete outsole elements are arranged to follow a spiral curve and arranged to be adjacent to the curved forefoot flex groove.