XPE users report: “The best pronation control I know in a prefabricated orthosis…The only semirigid half sole that doesn’t change shape and maintains the corrections I build in.” FREEDOM XPE Insoles are the only semirigid orthoses that don’t compress, change shape or bottom out during normal use. They also provide an excellent foundation for custom-fabricated orthoses. Use where long life and functional control are your primary objectives. This insole can also be easily modified by gluing or grinding. Use with our 2 degrees or 4 degrees wedges for pronation or supination control.