Hi-Tec Women's Gemini 200 Insulated Boot 100% Leather Rubber sole Shaft measures approximately 8 1/2" from arch Heel measures approximately 1 1/4" Platform measures approximately 1" Boot opening measures approximately 11" around Waterproof upper with core venting windows for added breathablity 200g Thinsulate Insulation, with faux shearling lining Insulite -shell technology for extreme comfort Winter traction outsole for improved tracion and stability 14.5 oz.