Calfskin is either of South American or European origin. The structure of calf leather is particularly firm and even. The grain is finer than that of the adult animals and it is one of the highest quality leathers.
A calf is under a year old and weighs less than 150 kilograms.
The older and larger the animal, the stronger the leather grain structure.
Box calf is called chrome tanned calf leather. In the UK it must be black coloured.Box calf is used for making uppers for light men's and women's shoes. Partially also forbags and saddlery. Leather thickness: 0,7 - 1,5 mm.