I've been stationed at the South Pole in Antarctica for the past 8 months and these Carhartt gloves are the best I've seen here so far. I often walk for an hour to two hours outside at -95F and my hands stay perfectly warm even without hand warmers and without glove liners. I am a maintenance worker and these gloves hold up to hard use. I've had them for six months now and I wouldn't hesitate to buy another pair or to recommend them to anyone.