Dr Martens Tred Safety Boot 6904 * Discontinued, some sizes still avail.
try new style 6934 here https://www.hivis.co.uk/dr-martens-grapple-safety-boot-6934.html
The tred offers super grip and safety
Black industrial grizzly leather
High wicking lining for extra comfort
Dr Martens tred offering superb anti-slip properties and heat resistant to 300°:C
200 joule EN345 or EN ISO 20345