Extreme winter conditions are no match for our new Pac Max work boots, boasting an impressive list of performance, comfort and safety features essential for working in frigid working environments. For starters, these 10-inch-high boots are made with Ever-Guard™ leather uppers that are abrasion-resistant, waterproof and free of metal and mutilation. To help prevent moisture from stealing heat, we've added internal waterproof and breathable membranes for maximum waterproof protection, plus EVA anti-gel plugs that help eliminate perspiration. For extreme warmth, these boots include a thick lining with insulation rated down to -76 degrees Fahrenheit. Even their lightweight composite toecaps conduct cold more slowly than metal toecaps. Additional safety features include electrical hazard protection, puncture-resistant plates and 3M™ retroreflective strips on the toes and heels for 360-degree visibility. Your comfort is assured with our shock-absorbing anti-fatigue technology insoles and cushioned polyurethane midsole pads. For sure-footed grip, their heat-, oil-, slip- and abrasion-resistant, non-marking TPU outsoles offer superior traction in tough conditions and are spike-compatible for even greater grip on icy terrain.