The move away from the old working uniform included a replacement for not only the jacket and cap, but also the venerable chambray shirt and dungaree trousers. The new uniform consisted of a utility jacket, utility cap, utility jumper (long and short sleeve) and utility trousers. The trousers, cap, and jacket were changed to a very dark navy blue (3446), essentially black from a distance. The utility jumpers were a light blue which gave an usual contrast when wearing the full uniform with the jacket unzipped and open. The rates were changed to 3446 to match the color of the new jacket. Both the old and new working uniform shared and overlap of manufacture and wear initially. Eventually the manufacture of the old uniform ceased (approximately 1972) and issue of the new uniform was underway to new recruits. Probably anyone who completed boot camp prior to 1972 had the original issue of the old working uniform. The Jacket, Utility, Dark Blue had done away with the button and flap and added two breast pockets with zipper closure. The material also changed from cotton sateen to a cotton/poly mix. The new Cap, Utility, Cotton/Poly Poplin was also produced in shade 3446.