What is the process of fatliquoring of leather and how does it benefit my walking boots or shoes?

Fatliquoring of leather is the process of adding the appropriate amount of oil into the leather to ensure the leather doesn't dry out. By lubricating or fatliquoring your walking boots or shoes it will greatly affect the physical properties of the leather, preventing the leather from breaking, over stretching and stitch tearing.

Under lubricating (or fatliquoring), or applying the wrong type of leather treatment may result in hard bony leather that may crack over time. Over lubrication will result in excessive softness.