CF Green Combat Trousers (No insignia) . By 1960, three types of uniforms were worn by Canadian soldiers in the field. Bush Dress was worn during the summer, Battledress was worn in the winter, and black coveralls were worn by many units on exercises as a substitute for Bush or to save Battledress from undue wear. Both Bush and Battledress were also worn as a garrison or everyday uniform. What the Canadian military needed was an all seasonal uniform specifically intended for field wear. This new pattern of field uniform was trialed in the early 1960s and was adopted for service in 1963. The "Uniform, Combat General Service" (known to soldiers as "Combat" or "Combats") consisted of a Cap, Coat, Shirt-Coat, V Neck Sweater, two patterns of Trousers, and Boots. Developed in conjunction with the 1964 Pattern web equipment, Combat was very successful and by the late 1960s had replaced most Regular Army operational uniforms. It was also worn by the Royal Canadian Air Force and Royal Canadian Navy in very limited numbers before Unification. Post-Unification it was standard for all three services, but remained primarily an Army uniform. When brand new, Combat ranged in colour from O.G. 107 (Olive green #107) which was a grayish green shade, to O.D. 7 (Olive Drab #7) a brownish khaki green colour. Combat was designed to be a low maintenance wash and wear uniform and after a number of washings, uniforms faded to a greenish grey. It was specifically forbidden to dry clean or iron Combat due to it being 50% nylon and having nylon reinforcements. Dry cleaning or the use of bleach when washing Combat resulted in uniforms of startling shades of pink. The issue of Combat began in 1964 beginning with the combat arms of the Regular Army and was in widespread use by 1966. Bush continued in use as a garrison uniform during this period and was still in wear by Regulars in 1970. For years it was forbidden to wear Combat in public transportation or in public places such as restaurants or pubs. Although Combat was not initially issued to the Reserves, they were allowed to wear it subject to local or Regimental Dress Instructions. Army surplus stores did a thriving business selling used Combat and 1964 Pattern Web Equipment to Reserve soldiers. It was not until early 1972 that Combat was issued to the Reserves. Combat was never an authorized issue for Army Cadets, but as with Reserves, a number of Cadets privately purchased their own Combat from surplus stores. As the O.G. 107 Combat Uniform is no longer an authorized order of dress for the Canadian Forces, it is now supplied to Cadets on a limited basis. Unfortunately Combat did have one drawback. Being made of 50% cotton and 50% nylon it was not flame resistant. When exposed to direct flame, the cotton burned and the nylon melted, burned and shrank. It was also easily stained by oil or lubricants as well as some types of insect repellants. In its original configuration, Combat was produced in OG 107, Olive Drab and various shades of Tan and Medium Green. Beginning in 1999, the OG Combat was replaced by the CADPAT Combat uniform, which itself is currently (2011) being replaced by the Improved Combat Uniform (ICU).