Columbia Women's Snowtrek Snow Boot 100% Leather and fabric Rubber sole Shaft measures approximately 7" from arch Heel measures approximately 1.5" Platform measures approximately 1" Boot opening measures approximately 10.5" around Injection-molded TPR shell, durable suede and mesh upper Gusseted tongue locks out the elements Lightweight 200g insulation Tricot lining wicks moisture and dries quickly Lightweight, durable TechLite midsole provides shock absorption, support, stability and protection, and resists compression set