Lucky Brand Hybiscus wide calf riding boot Crafted of supple leather, the Hybiscus riding boot has side pull tabs for easy on-and-off, a block heel and a wide calf for a just-right, comfortable fit. 100% leather. • Round toe • 1.6" stacked block heel • Approx. 16.2" calf circumference • Approx. 15.6" shaft height • Leather upper • Rubber sole Step out in style with these elegant black leather knee-high boots. Perfect for any occasion, they offer both comfort and sophistication.