I agree with those ones who leave angry comments on this brand, because I, as a regular consumer of this brand, so to speak, always acquired shoes from this brand. Nevertheless, last time when I bought a new NB 590, the sole came off within a couple of months.
It was a disappointment for me cuz I was trusting this brand and their quality, and as it turned not all models they sell deserve the attention. I used them for running and of course I ran a lot in this pair, but I thought it would be way more durable.