Rocket Dog Women's Sebastianml Motorcycle Boot 100% Polyurethane Imported Rubber sole Shaft measures approximately 15" from arch Heel measures approximately 2.5" Boot opening measures approximately 15" around Synthetic faux leather upper Full length back zipper closure 2 1/2" heel height 13.5" Shaft, 14" Circumference, Measurements Were Taken Using A Size 6. Measurements May Vary By Size. Rubber sole