I do not know why many manufacturers have to change the sizes of their products in great regularity. That's what happened to me last year also in footwear. Ultimately, I'm stuck with Geox and this is already the fifth pair. The actual size is slightly larger. Normally I wear a 42. But that is too large in any case. Therefore, I have in the last year have to send two pairs. the 41.5 fits but perfect! However, this seems to apply only to Lace Up Brogues. The sneaker from Geox I wear in the usual 42. I like the ease of shoes and have sworn off all leather soles. Since then, feet, knees, and even the back happy. Processing is neat, cleaned regularly has to last a lifetime.