The Denison smock was a distinctive camouflage garment used by British airborne forces during World War II. The smock, officially known as the "Smock, Denison Airborne Troops," was designed for paratroopers and glider-borne troops and played a significant role in British airborne operations. The Denison smock featured a unique camouflaged pattern, often referred to as the "brushstroke" or "splinter" pattern. The pattern consisted of irregular vertical and horizontal stripes, creating a disruptive effect for concealment. The primary purpose of the Denison smock was to provide airborne troops with effective camouflage during airborne operations. The disruptive pattern was intended to break up the outline of the wearer and provide concealment in a variety of environments.