I have been wearing steel toe boots 50-65 hours a week for 13 years. At first I tried a few different cheap brands that were recommended by coworkers. Soles curled into a banana, split completely in two, or generally got uncomfortable within 1 to 1-1/2 years. Then I realized the ones recommending them sat on their butts all day! I broke down and bought Red Wings close to three years ago and they're holding up great. They are still comfortable, the oil and grease hasn't distorted the sole, and no stitches have come loose. There is a little wear on the soles, but not much. I occasionally nudge 2200 degree forgings with the toe to flip them over, and even that hasn't damaged the leather. I'm wearing them now!