These are formal shoes that my child wore for a piano recital. Black Size 20 cm I am selling them because they seem to have outgrown them. They adjust with Velcro to fit the instep of the foot, making them easy to put on and take off, and they don't slip off easily. They are formal black and can be used by both boys and girls, and are suitable for entrance exams, entrance ceremonies, graduations, etc. I think they are probably leather. I will send them in simple packaging.