Brinley Co. Womens Buckle-Strap Zipper Detail Knee-High Riding Boot Rubber sole Shaft measures approximately 13.5 from arch Boot opening measures approximately 16" around Heel height measures approximately 1.25 inches. Taken from a size 7. Shaft height measures approximately 13.5 inches. Circumference approximately 16 inches. These boots feature plaid print fabric lining and textured rubber soles. Slightly padded footbeds add comfort. Faux leather upper/man-made outsole