Those woolly-pullies had a built-in spare tyre around the waist when worn. As for those two-tone overalls (mid-70s onward), I defy them to fit anyone properly. If the legs were long enough, the chest was too big. Did the procurement teams ever test the clothing under working circumstances? Likewise with the previously-mentioned green wet weather kit. The hooded blue naval use gear with the face shields and peaks was far superior.
On the Top Gun subject, I noticed that the engineers always referred to their charges as a 'jet', as opposed to an 'aircraft'. New terminology, I guess. They used to be quaintly called 'kites' when I was in.