This is the first pair of Mizunos I have owned and I love them. I bought mine November 17 and have put over 300 miles on them since then. They are very light weight and so far seem very durable with no noticeable wear on the soles yet. My longest run in them to date is 31 miles and they felt as good when I was done as when I started. I will be getting another pair soon so I can rotate my shoes since I have added another day of running each week.