I had bought the same one online, size 43, two years ago. The day before yesterday I bought the same one, size 43 again, from a store. The previous one was hard on the sole and on the sides, I suffered for more than two months. The one I got now is comfortable from the start, no discomfort at all. Could it be that they sell defective products online, because of this difference? Do they sell fakes, how can we tell them apart? I put them side by side and I can't find any difference. The only thing I noticed is that on the instep the stitches in front are looser, maybe it's from use.