The difference lies in the material’s ability to resist and repel water saturation. A leather jacket is naturally water-resistant because the dense structure of the hide can repel light rain or snow for a short duration, preventing it from immediately soaking through.1 However, leather is inherently porous; if exposed to heavy, prolonged rain, it will eventually absorb water, leading to potential damage like stiffness and cracking.2 A true waterproof garment, conversely, is typically made from synthetic materials treated with chemical barriers (like Gore-Tex or polyurethane) that form a complete, impenetrable seal, allowing zero water penetration regardless of the duration or intensity of the exposure.
