Merrell Women's Taiga Zip Waterproof 100% Leather Synthetic sole Shaft measures approximately 9.5" from arch Heel measures approximately 1.5" Platform measures approximately 1.00" Boot opening measures approximately 13" around Waterproof full grain leather upper Waterproof membrane provides impermeable but breathable barrier Faux fur thermo insulation lining treated with antimicrobial solution 202 grams of Merrell Opti-Warm lightweight, low-bulk, synthetic insulation keeps you warm Inside zipper for easy on and off