environment. Combat uniforms were not issued to reservists until 1972, although they were permitted to wear it if they purchased it themselves (usually at war surplus stores). The combat uniform consisted of a long-sleeve olive-drab (OD) shirt, with two voluminous cargo pockets at the hip and two slanted pockets (designed for the 20-round FNC1 rifle magazine) at the breast, and drawstrings at the waist and hem; OD trousers, with regular pockets at the front and back and a large cargo patch pocket on each thigh, drawstrings at the cuff, and buttons on the belt loops for the attachment of optional suspenders; an OD V-neck undershirt; and black combat boots, with trouser cuffs bloused over. The beret was often worn, but could be replaced by a soft OD field hat or the American M1 helmet as the tactical situation dictated (while the Canadian combat uniform was universally olive green, American-style cloth helmet covers where two types of camouflage pattern were issued; a reversible "Mitchill" pattern consisting of a spring pattern and an autumn pattern sewn on the reverse and later the American woodland pattern). At the time of adoption, the OD colour was a standard among NATO forces; however, as other NATO forces adopted camouflage uniforms (for example, the British DPM (disruptive-pattern material) uniforms, or the Americans their woodland camouflage BDUs (battle dress uniforms)), the Canadian Forces quickly became one of the few first-world militaries not to adopt camouflage garments. In the late 1980s, the CF experimented with an alternative combat shirt designed by an Air Command officer. The Mark III Combat Shirt had flat breast pockets and lacked the hip cargo pockets and drawstrings. It was designed to be tucked into the trousers like a regular shirt if desired, or worn untucked like the older-style shirt. It proved rather unpopular from an operational standpoint due to its lack of storage capacity, and was considered to look sloppier than the older style; few were issued after initial stocks were depleted, but the Mark III was worn alongside the earlier marks by some individuals until the adoption of CADPAT throughout the Army in the late 1990s. Earlier uniforms remain in use in small numbers by the Canadian Cadets youth programs, and are issued at summer training facilities to junior cadets for survival exercises. Officers displayed their rank on slip-ons on the epaulettes of the shirt or jacket; non-commissioned members wore small OD