Baffin Women's Montreal Snow Boot 100% Synthetic Rubber sole Shaft measures approximately 9" from arch Heel measures approximately 1" Boot opening measures approximately 13" around Diamond weave nylon upper Rated to -4F degrees Cushioned EVA midsole B-TEK lining with Thermaplush Icepaw technology outsole Maintain a wintry sense of style with the crossing straps and faux-fur lining of this boot by Baffin.