Waterproofing leather is a process of adding a protective coat to the leather to repel water. There are many products on the market that can be used for waterproofing, but each has its own set of pros and cons. Before waterproofing your leather, it's important to clean and condition the leather first. This will help ensure that the waterproofing product can properly adhere to the leather. Once the leather is clean and conditioned, you can apply a waterproofing spray or cream with a cloth or brush. Be sure to follow the instructions on the product label carefully.After applying the waterproofer, you may need to let it dry for several hours or overnight before using the item. When storing items made of leather, avoid exposing them to direct sunlight or heat, as this can damage the material.