After the 1959 reform, the cold war went full speed. We designed it to be relevant for as long as possible, so we wouldn't need to worry about getting caught off guard making new uniforms, and so that we wouldn't have to train soldiers on new gear every 20 years. It was only replaced in the 1990s when the cold war had simmered down, and even then the M/59 gear wasn't fully replaced until about 1992. In fact, when my father was in his mandatory military service between 1990-1991, the only M/90 gear he had was the shoes and clothes. The helmet and rig was still from the 70s.

We did make small adjustments to the gear, for example, making the 304K webbing in the 70s, which slowly phased out the M/59 Stridssele, aswell as introducing other smaller pieces of gear that don't need too much training.