This "largely" but the problem is and I do not even know that even at Caterpillar times triggers a thread of the stitching or the leather is very vulnerable to any kind of dirt and scratches (yes, nano-impregnated).
The real problem lies in the sole, perhaps made of 2 layers visible in the picture. The bottom sole dark rubber ensures grip and also does not wear very quickly (as far as I can tell after one month), the thicker, light brown sole is relatively soft and ensures good walking comfort. And if the lower sole would not come off after only one month forward, everything would be great. If it does, however. She does not immediately completely from, but dissolves up front and once it shuffled a bit, it is just more and more.
Have the first pair must be replaced because it happened just right, considered it an isolated incident. Now the second pair of the same thing, right stronger, but also on the left foot. And I have an office job, to which I usually travel by car, the shoes are so exposed to really any significant stress.
Hence I find 2 things: Firstly, I run well funny, especially with the right foot; on the other hand are the shoes crap, at least the sole construction, because in other shoes that's never happened. The second pair goes back well and I buy other shoes.
However, here also a credit to Amazon for the basic handling of the first return, it was a month and about a week when I noticed the replacement, ie after expiration of the Return Period I = could not start on the internet the process. In an email I had after less than a quarter of an hour a reply with a link to return shipping label, and the replacement was underway.
Therefore: Here Buy at Amazon, but not this shoe.