I've had these Kinvara's for about 13 months (before picture - never worn, after picture - today), and they're the only shoes I've used to run in the past 13 months. They survived end of last year track season, summer training, a full cross country season, winter running, and half of this track season. The most disappointing thing and what finally made me purchase the newer edition - is the shoe laces! For $100 shoe you would expect to have a little more durable shoe laces. Mine came apart and one is just string mangled together. Overall, I was pleased with this shoe.