In 2018, I walked in these just over 3,600 km. I went through 4 pairs. They lasted around 1,000 km each before the heel was just too worn and I had to change. Fortunately, I planned ahead and from Scotland to Rome, new pairs were waiting for me each time. Not even one blister. This year I walked Rome to Jerusalem. 1,800 km. Once again - blister-free walking. I no longer buy any other makr/model of walking shoe. Only these.