In preparation for embossing smooth leather, the leather is frequently sanded (buffed) first on the grain side to obtain a uniform surface and to make skin damages invisible. Subsequently, a binder-based colour layer is applied and a uniform grain embossed.
Such leather is then referred to as "Corrected Grain". It is cheaper and feels stiffer and colder due to the thick colour layer and the fibre compression of the embossing. It is also less breathable than porous leather.