Combat Leather boots are military boots designed to be worn by soldiers during actual combat or combat training as opposed to during parades and other ceremonial duties. The first true modern combat boots, called the "Boots, Service, Combat M-1943 (Double Buckle)," were issued with the M-1943 Uniform Ensemble during World War II.

Combat leather boots are worn by soldiers because they are durable, comfortable and has other utilities.  These boots are specifically designed to be comfortable to wear in a variety of changing conditions for long durations without significant long-term wear.

Modern combat leather boots are designed to provide a combination of grip, ankle stability, and foot protection suitable to a rugged environment. They are traditionally made of hardened and sometimes water-proofed leather.

Today, many combat boots incorporate many technologies originating in civilian hiking boots, such as Gore-Tex nylon side panels, which improve ventilation and comfort. They are also often specialized for certain climates and conditions, such as jungle boots, desert boots, and cold weather boots as well as specific uses, such as tanker boots and jump boots

Combat boots are also popular as fashion clothing in the punk, heavy metal, industrial, skinhead, and BDSM subcultures, however, they are becoming more and more mainstream.