Being a Letter Carrier for the past 30 years,these are the best boots I've ever worn. I've had the conquest boot in the past and lasted about 4-5 years. After that boot, went to a less expensive boot to save a few bucks  and made a big mistake,went back to the sorel boot and can't be more satisfied. They give you the support and warmth you need to work in the cold weather. So good,I purchased a second set to have on hand.sorel is the best.