Patent ID: 8683717

Claim:
A support for a person's foot, the foot having an arch, a length and a width, said support being arranged for disposition within an article of footwear to effect raising of the arch of the person's foot by everting the forefoot of the person and inverting the rearfoot of the person to lock the person's midtarsal joint, said support comprising a base portion and a wedge portion, said base portion extending for substantially the length and width of the person's foot and having an upper surface and a lower surface, said wedge portion being disposed on said upper surface of said base portion and having a lateral side edge and a medial side edge, said entire wedge portion is designed to extend longitudinally from the base of all five metatarsals of the person's foot to the sulcus section of the person's foot, said wedge portion including a midline located centrally of said medial and lateral side edges, an anterior portion extending for approximately â…“ the length of said wedge portion, an intermediate portion extending for approximately â…“ the length of said wedge portion and a posterior portion extending for approximately â…“ the length of said wedge portion, said anterior portion tapering downward in thickness anteriorly to the sulcus section of the person's foot, said posterior portion tapering downward in thickness posteriorly from said intermediate portion to the base of all five metatarsals, said wedge portion tapering in thickness along the entire length thereof from approximately said midline to said medial side edge, wherein said wedge portion is thickest at the midshaft of the fifth metatarsal at said lateral side edge of said intermediate portion and thinnest at the base of the second metatarsal and the lateral aspect of the first metatarsal.