Comfort Rating: -35°F to 15°F Waterproof 1000g Insulation Don't let foot fatigue, discomfort or injury keep you from getting the job done with these full grain leather boots. The non-slip outsole and safety toe keep you safe, while the exclusive VitaComfort® system keeps your feet comfortable and dry. Comfort Rating: -35°F to 15°F 1000g Insulation 8" Buffalo leather upper Vibram® Montana with IceTrek® outsole ASTM/CSA composite safety toe Welted construction CSA puncture resistant plate Rubber toe guard Waterproof VitaComfort® anti-fatigue and gravity-fed moisture management system ESR/Electrical hazard compliant Platinum Leather Boot