KEEN Women's Brighton High Waterproof Winter Boot 100% Leather Rubber sole Shaft measures approximately 12" from arch Heel measures approximately 1.25" Platform measures approximately 0.75" Boot opening measures approximately 15 around Trailhead Collection 200g KEEN.WARM bamboo charcoal lightweight, anti microbial insulation 4mm Multi directional traction lugs Compression molded EVA midsole Elastic side gore panels for easy on/off