Insoles came out as best in our test for Pes Cavus (high arch) and collapsed forefoot! (High instep) The MySole High Arch - Work Insoles have been elected as the best insoles for Pes Cavus (high arch) and collapsed forefoot at the moment! Many specialists and therapists consider these insoles as the very best solution for high arch and collapsed forefoot related complaints! Experience the difference with the MySole High Arch - Work Insoles!