The build quality is good, it runs like a dream. Wonderfully light, one is independent. Toll !.
Unfortunately, the sole is also precisely the weak point. Does not one millimeter straight, the sole expires. After just a few days the sole was slightly "sanded", even though I just run relatively. After a few weeks she was downright expired unilaterally and pressed his foot so that more and more in a poor posture. I therefore gave me a lot of effort and stayed extremely on my gear, the rolling, etc.
Meanwhile, I have the shoes 4 months. In the summer, I had rarely on, since August more daily. The sole is particularly badly worn at the ball, the protruding parts are completely gone. I realize almost any slightly larger pebble through the sole (even if it is still totally comfortable!).
After only 4 months of the shoe is actually ready for a ton.
Absolutely not to be recommended!