Calf width (cm): 38.4 (based on UK size 5) Care: Use Hunter Boot Shine and Rubber Boot Buffer to keep boots in optimum condition. Fit: Regular fit Fit type: True to size Heel height (cm): 3 (based on UK size 5) Leg height (cm): 30.5 (based on UK size 5) Lining material: Lining: 100% Polyester Material: Material: 100% Rubber Trim material: Buckle: 100% Metal Webbing: 100% Polyester Wear and use: Outdoor Size/Fit Summary: True to size, Regular fit. Designed to perform across rough and challenging terrain, this handcrafted rubber boot has been updated with a Newflex Vibram® outsole. Lightweight and flexible, the sole features commando cleats for grip, while the poly-lined design is made from a new soft rubber compound for durability and comfort. Waterproof Handcrafted Newflex Vibram® outsole is engineered for comfort and durability Cushioning performance compound Classic commando cleat tread Rubber rand Back webbing pull tab for ease of wear Kickspur for easy removal Soft rubber compound High shock absorbtion for maximum energy conservation 3mm and 5mm insoles supplied, offering a tailored fit that is specific to you