The term "Navy Leather" refers to a specific type of leather that is typically used in making items such as belts, jackets and shoes for naval personnel. This particular style of leather has a distinct appearance characterized by its dark brown color and smooth texture. It gets its name from the fact that it was traditionally made using materials obtained from discarded Navy goods like rope and canvas.
In modern times, "Navy Leather" is often used to describe any type of dark brown leather, regardless of where or how it was produced. The term has become synonymous with a rich, deep shade of brown that is reminiscent of traditional navy-style clothing and accessories.