Comfort Rating: -10°F Waterproof ASTM composite safety toe Kick ice and take names in your Black Widow™ lightweight, waterproof work boots for men. Offering protection in temps below freezing, the Men's Black Widow™ Boot keeps you safe with an anti-slip outsole and ASTM composite Safety Toe. Our exclusive VitaComfort® system lets you stay on your feet longer and manages moisture so your feet stay warm and dry. With the Black Widow™ boot you can focus on getting the job done while your feet stay comfortable and protected. Comfort Rating: -10°F 200g insulation 6" Nylon/leather upper Vibram® dual density outsole with IceTrek® outsole ASTM composite safety toe Waterproof VitaComfort® anti-fatigue and gravity-fed moisture management system Electrical hazard compliant Men's Black Widow™ Boot