Patent attributes
The present invention is an insert having a raised region that contacts an arch region of a wearer's foot, which may be selectively reinforced with a removable supplemental support. In exemplary embodiments, the insert includes a heel region adapted to receive at least a region of a heel of a wearer, and the raised region has a length situated along a width of the insert and adapted to underlie a calcaneus-midtarsal connection of a foot the wearer. The raised region is defined by a bottom semi-cylindrical surface that forms a cavity below the raised region so that an apex of the bottom semi-cylindrical surface lies above a bottom flat surface of the insert. Inside the cavity, the support is removably coupled to the cavity for selectively increasing or decreasing a rigidity of the raised region of the insert in order to apply a user-selected therapeutic pressure.