The pull-on Howk Rigger Boot carries on the tradition of hardworking Docs with the ultimate in protection and comfort. The men's boot includes an internal steel toe-cap, padded ankles, a moisture-wicking, anti-bacterial Softwair memory foam liner - all built on the iconic Dr. Martens air-cushioned sole that's resistant to oil, fat, petrol and alkali. This is a Goodyear-welted product. The upper and sole are heat-sealed and sewn together, not merely glued like many footwear constructions. Features: Safety toe cap offers protection from a minimum 200J impact and 15kN compression force, materials used allow the passage of air and moisture, which enable the wearers feet to breathe. Safety spec: ASTM F2413-11 MI/75 C/75 EH. Material: Leather, Nylon.