I drive semi for a living,I am in and out of my truck making deliveries in all types of weather, I needed a new pair of boots that were number one comfortable, water proof, and warm in the winter. In the past I have tried other top name expensive boots that you could only buy at their stores among others. I can say that the Caterpillar Generator Waterproof boots so far are far superior to any boot I have ever worn. They are very comfortable, from the first time I put them on I knew I had bought the right boots and they keep my feet warm and dry. I would highly recommend them to any one.