I purchased these shoes used at an auction, but they didn't fit, so I only tried them on and then stored them away. I usually wear sneakers in sizes 26.5-27cm, and while I can wear these shoes, they were tight. They have a narrow width and a low instep, so I think they would fit best for someone who wears 25.5cm-26cm (leaning more towards 25.5cm). According to the description at the time of purchase, they are made of Annonay calfskin, and the leather quality is very good. They are lighter than they look, so I think they would be easy to walk in.