I already have other Bugatti shoes. In an optically similar shoe I have size 44, otherwise most likely 45. Therefore, I am with this shoe assumed that 45 should fit. From the length it should fit it, but unfortunately the shoes fall narrow (which goes) but also very flat from. Is the first shoe in which I would have plenty of room up front, but what pushes above. Have therefore sent him back. The processing of the shoe is excellent. The heel was very comfortable with me. For someone who has a flat foot has certainly interesting. For me (the otherwise really no problems with flat shoes has) not suitable, therefore only 4/5 stars.