You've found the article in leather that you've always dreamed of, but can't make up your mind regarding the colour or material Set your mind at rest we'll send you a set of swatches per material of all colours available. Smooth calfskin is the most widely used kind of leather & it is also the kind our clients like best. Smooth calfskin is real leather, which is to say that the material is actually leather & not flesh split. Real leather has that grain, the best part of the hide. Calfskin can be used to make all our leather articles.