Chinese Laundry Kristin Cavallari Women's Cassie Suede Boot 100% Manmade Imported Synthetic sole Shaft measures approximately 22" from arch Heel measures approximately 3.75" Platform measures approximately 0.25" Boot opening measures approximately 15.25" around Suede over-the-knee boot featuring sculpted heel, partial instep zipper, and goring panel with buckle strap on back shaft