CLARKS Women's Wave.Shelter 100% Leather Rubber sole Shaft measures approximately 9" from arch Heel measures approximately 1.25" Boot opening measures approximately 13.75" around Removeable footbed for custom orthodics Internal ethylene vinyl acetate heel wedge positions foot for easier walking Rocker profile heel kicker,concave heel and toe support at outsole for effortless motion Clarks Wave Collection carries the Seal of Acceptance from the APMA