The Denison smock was a coverall jacket issued to Special Operations Executive (SOE) agents, the Parachute Regiment, the Glider Pilot Regiment, Air Landing Regiments, Air Observation Post Squadrons, Commando units, and other Commonwealth airborne units, to wear over their Battle Dress uniform during the Second World War. The garment was also issued as standard to the scout and sniper platoons of line infantry battalions. The smock was initially worn over the paratrooper's webbing equipment, but under his parachute pack and harness, as its primary purpose was to prevent the wearer's equipment from snagging while emplaned or during a jump. It was equally useful for camouflage and as a windproof garment that provided a method of carrying ammunition or equipment. Contemporary photographs show that airborne troops preferred to wear the smocks under their webbing once they had landed. Development The smock replaced an expedient first issue khaki-drill paratroop jump-jacket that had been directly copied in 1940 from the German parachutist’s Knochensack ("bone sack"). This first "smock" was designed to be stepped into and pulled up over the body like a set of overalls which had had the legs removed from mid-thigh. The new Denison smock was put on and removed by pulling over the head: the collar zipped open as far as the chest, making it a true smock style. The zip was covered by a cloth flap, which had no buttons or other method to fasten it down. Introduced in 1942, the "Airborne Smock Denison Camouflage" bore a camouflage pattern designed by a Major Denison, a member of a camouflage unit under the command of eminent stage designer Oliver Messel. An alternative name was the "Smock Denison Airborne Troops". The Denison was a popular garment among officers who could acquire them—Company Sergeant Major CC Martin, DCM, MM of The Queen's Own Rifles of Canada mentioned in his memoir Battle Diary that senior officers and sergeant majors of his battalion wore the Denison universally. 1st Pattern The smock was made from loose-fitting, yellowish-sand coloured, heavyweight twill material, allegedly hand-painted with broad, mop like brushes using non-colourfast dyes in broad pea green and dark brown stripes, or "brush-strokes". With use the base colour faded to a sandy buff, and the overlaid shades gained a blended appearance. The colours of the 1st pattern smock were thought to best suit the wearer to the North African and Italian theatres. It had a half length