Kamik Women's Park Boot 100% Suede and nylon Rubber sole Shaft measures approximately 8 3/4" from arch Heel measures approximately 1" Platform measures approximately 1/2 Boot opening measures approximately 12" around Warm, dry, and sleek sporty styling Temperature rated to 25 below Seam Sealed Waterproof Thinsulate Insulation Rubber Outsole Maximizes Traction