Brinley Co. Womens Knee-High Buckle Riding Boot pleather Shaft measures approximately 12.5 from arch Heel measures approximately 2 inches" Boot opening measures approximately 14.5 around Heel height measures approximately 2 inches. Taken from a size 7. Shaft height measures approximately 15.5 inches. Circumference measures approximately 15.5 inches. A slightly padded footbed adds comfort. Faux leather upper/man-made outsole