Moto-inspired wide calf boots with unmatched comfort Traction sole provides you with extra stability Soft System comfort package provides all-day support, flex, and cushioning 15 inch boot height, 16 3/4 inch calf circumference. Note: Measurements based on size 6 boot. For each half size larger, shaft height increases by .12 in, circumference by .20 in. Faux leather upper with a round toe, inside zipper for easy on/off, decorative strap and buckle details, and stretch gore for extra flexibility and maximum comfort.