DELIVERS COMFORT & SUPPORT: Extremely durable, cushioned, and heat-resistant, the Sierra collection keeps feet comfortable and supportive in tough conditions. It's ideal for harsh outdoor jobs, high-heat environments, or intense construction work. STEEL TOE FOOTWEAR: These work boots for men meet ASTM F2413 standards for electrical hazard-resistant and safety toe protection. They also follow ASTM F3445 standards for slip resistance. ON THE JOB DURABILITY: Built for the working man, these men’s boots are made with premium full-grain leather, unlined, with a resolable Goodyear welt construction for durability. They are designed with a six-row stitch pattern on the 10-inch shaft. THE SUPPORT YOU NEED: The working boots for men have high heat-resistant Duratread outsole for oil- and slip-resistant and pass hot contact tests at 300°C/572°F on the 90-degree heel. ALL-DAY COMFORT: These leather boots for men feature a removable All Day Cushioning insole for added comfort. The ATS technology also provides ergonomic support on uneven terrain.