Hard wax leather is a type of leather that has been treated with a hard wax finish. This finish gives the leather a smooth, glossy appearance and makes it more resistant to water and stains. It is often used on high-quality leather goods, such as bags, shoes, and jackets.
Oily leather, on the other hand, is a type of leather that has been treated with oil to make it softer and more pliable. Oily leather is often used in the construction of boots and other types of footwear because it is more comfortable and flexible than other types of leather. It is also more susceptible to water damage and stains, so it may require more frequent maintenance and cleaning.
In general, hard wax leather is more durable and easier to care for than oily leather. However, oily leather may be more comfortable and flexible, making it a better choice for certain types of products.