PolarForce® Max Boot Features: Comfort Rating: Effective in temperatures ranging from -40°F to 10°F. Insulation: 800g heavy-duty insulation combined with DRI-BLAZE® lining for warmth and comfort. Safety Features: ASTM composite safety toe and electrical hazard compliant. Anti-Slip RefrigiWear® outsole for added traction. Waterproofing: 8-inch waterproof leather upper and polyurethane shell keep feet dry. Comfort Technology: VitaComfort® system absorbs shock, reducing fatigue during long hours. Practical Design: Rubber heel plate for easy kick-off and lightweight construction for agility. The PolarForce® Max Boot is designed for extreme conditions, offering the ultimate protection and comfort to get the job done efficiently!