Rockport Women's Total Motion 75mm Over-The-Knee Riding Boot 100% Leather Imported Synthetic sole Shaft measures approximately 23.75" from arch Heel measures approximately 2.75" Boot opening measures approximately 16.75" around Over-the-knee boot in flexible suede featuring stacked heel and stretch paneling at back shaft Partial-length instep zipper Stabilizing midsole plate Comfort system designed to provide lightweight shock absorption. Foam-backed lining