zip fastener made of steel, knitted woollen cuffs, four external pockets that secured with brass snaps (two on the chest and two below the waist), two internal pockets on the chest, and epaulettes that secured with plastic battle dress buttons. The inside of the collar was lined with soft khaki flannel (or in senior officer's smocks, Angora wool). A “beaver tail” fastened beneath the crotch from the back to the front of the smock - which kept it from riding up during a parachute descent. When not used, the tail would hang down behind the wearer's knees, hence the nickname "men with tails", given by the Arabs in North Africa in 1942. The smock was styled as a very loose garment, since it would be worn over Battle Dress, but it could be adjusted to some extent with tightening tabs on both sides of the lower part of the smock. The smock was most commonly associated with British and Commonwealth airborne units, and the Special Air Service Regiment, after D-Day, but its initial use was by members of the Special Operations Executive (SOE), parachuted or landed into enemy territory between 1941 and 1944. In the early smocks the colours were meant to be impermanent and wash out, leaving the garment looking like a typical French artisan or labourer’s chemise, and thus, hopefully, aiding the wearer's Escape and Evasion chances. As the newly formed Airborne Forces expanded, so the need for smocks grew, meaning that they were by now screen printed for easier production. For use by Airborne troops, the Denison was worn over the battledress and under the webbing, with a sleeveless green denim oversmock being worn over the ensemble to prevent rigging lines snagging in the webbing and causing a 'chute malfunction. This sleeveless smock had a long external zip (often removed and used to make the half-zip Denisons full zip), a monkey tail that press studded to the outside front of the oversmock and two elasticated open pockets on the lower front which were to hold grenades for use whilst in the air or immediately upon landing. After a successful parachute landing fall, the oversmock was discarded. 2nd Pattern The 1st Pattern smock design was replaced in 1944 by a second pattern which had buttoning tabs at the cuffs and brass snap fasteners to stow the tail flap on the back of the jacket when not needed. Other