I'm not a regular user. I wear shoes all day but not often, as my experience remains low. Usually I put on the 43.5 - 44. Since security cut big shoes I ordered 43. This is still a little big. For now I'm a little embarrassed at the sides at the top of the shoe, but I hope it will give in use. Otherwise, very well characteristics: lightweight composite shell therefore, heat resistance, wrought is better ....