Lean, clean, and very straightforward, the BL510 boot by Blundstone is the perfect boot for work and play. Premium oil tanned leather upper. From the 500 Series. Smooth synthetic lining. Sturdy front and back pull-on tabs. Elastic gore retains its shape. Twin-needle reinforced stitching with a high tensile strength thread. Full-length Cambrelle™ comfort footbed wicks away moisture. Heat-formed heel for a better fit. Shock Protection System (SPS) disperses shock at the heel strike and reduces skeletal stress on the feet, knees, and vertebrae. Injection molded soles for seamless fusion to the upper. Dual-density polyurethane outsoles are weatherproof, lightweight, durable, and provide superior traction. Measurements: Heel Height: 1 1⁄4 in Weight: 1 lb Circumference: 10 3⁄4 in Shaft: 6 in Product measurements were taken using size AU 7 (US Men's 8, US Women's 10), width Medium. Please note that measurements may vary by size.