The helicopter guys in Cameroun used to wear very tasteful orange coveralls closely (or actually, looking at the fit, extremely losely) modelled on those the street cleaners wore (except much worse fitting and probably costing 10 times as much). At least they were mostly fabricated from (very cheap) cotton. The fixed wing pilots were wearing a tasteful combination of 100% nylon tan trousers (held up by tasteful 100% plastic belts, with a buckle incorporating the company logo) and delightful, sweat-absorbing white shirts in a super 70%polyester/30% cotton mix. You could tell the management were really caring about the appearance and safety of the crews
