I’ve put some mile in on these bolder boots. I walk 3 to 4 miles a day on the job. Gravel, dirt, and grass mainly. I probably wear them 3 to 4 days a week so that’s a lot of miles over the year I’ve had them. The boots are still structurally sound inside and out no issues with them, my feet, legs, and back never hurt wearing them either. Would definitely recommend to anyone looking for a barefoot boot. Would love to get another pair, but in leather this time!