Baffin Women's Boston Snow Boot 100% Textile Rubber sole Shaft measures approximately 13.25" from arch Heel measures approximately 0.75" Boot opening measures approximately 14" around Diamond weave nylon upper Rated to -4F degrees Cushioned EVA midsole B-TEK lining with Thermaplush Icepaw technology outsole An adjustable opening lets you keep coldness away, while a slick upper repels snow.