Note that the leather side of a skin often "picks" off a little. Therefore, it can be good to put a protection between the fabric and the leather side of the leather if you have it in, for example, a sofa. If you have already got white pimples on your furniture, you can remove the pimples with a clothes roll or slightly moistened cloth. If you want to get rid of the bumps, you can wipe the leather side of the new leather with a cloth that you moisten lightly with water and a little fabric softener.

In order for the leather to become soft and supple, the leather side is sanded to a smooth suede. Then it becomes like tiny little pimples in the leather that wear away over time and can stick to fabrics. This is seen on most genuine lambskins and sheepskins. On some skins it is a little more and on others less.
Through the grinding, the leather becomes smooth and supple.
If you sand too much, you will get holes in the leather.
With enormous skill and precision, the skins are ground on the rotating grindstones.
Then it becomes like tiny little pimples in the leather that wear away over time and can stick to fabrics. This is seen on most genuine Swedish lambskins and sheepskins. On some skins it is a little more and on others less.