Tecnica Moon Boot Women's Puddlejumper Faux Fur Boot 100% Synthetic Rubber sole Shaft measures approximately 9" from arch Heel measures approximately 1 1/2" Platform measures approximately 3/4" Boot opening measures approximately 12" around Premium 3D anatomic drop-in footbeds and midsoles provide great fit, superior insulation, exceptional comfort and all day walkability TecniTherm Insulation