I bought these shoes for a friend who was on a business trip to Mexico for 2 years. He said they held up well and he was on his feet all day. He usually takes a size 8.5-9. I ordered 40 EU because he tried it on the first time I bought it in the store and it's the size that fits his foot. Not sure about the sizing chart as I just took his word for it that his shoes were 40 euros when I ordered them. It took a very long time before they started falling apart. But understand again that he ran every day from about 9am to 10pm for two years. He didn't polish or care for them that often either. The skin held up well. This is the second pair he has asked for. Based on what he told me about them I give these shoes 5 stars. He still has them and wears them to work.