why leather cracks

[MacSilas]

The provided context does not contain specific information about the causes of leather cracking. Based on general knowledge, leather cracks primarily due to a loss of its natural moisture and oils.

Leather is a natural material derived from animal skin, and it requires these oils and moisture to remain soft, flexible, and durable. When these essential elements are depleted, the leather's fibers become dry, stiff, and brittle. This dryness significantly reduces its ability to stretch and flex under pressure.

Several environmental and care-related factors can accelerate this drying process. Prolonged exposure to direct sunlight or heat sources, such as radiators, can bake the moisture out of the material. Similarly, living in a very dry or low-humidity climate can draw moisture from the leather over time. Lack of proper maintenance, specifically the failure to regularly clean and condition the leather, prevents the replenishment of these vital oils. Over time, as the dry leather is bent, flexed, or stressed through normal use, the brittle fibers begin to break, resulting in the visible cracks and fissures on its surface.