In reply to bouldery bits:
SWMBO (the chief of fashion police in our house) binned my somewhat ragged Ron Hills several years ago, but I still have (and wear!) the derivative 'Bikesters' as part of my cycle commute wardrobe. I also have some similar Endura (or Altura, can't remember which) troos, which look and feel very similar.
A memory from the '80s - I used to wear 2 pairs of Ron Hills for winter walking/climbing and also for winter road cycling. On one Saturday afternoon Snowdonia loop, the headwind from PyB to the Pen-y-Gwryd was bitter and I was almost stopped in my tracks by the most excruciatingly painful, cold-induced, balls-ache! I stopped at Pen-y-pass and rummaged in a bin for something potentially windproof. Finding a carrier bag, I nipped into the loos and said bag was fashioned into a makeshift 'windproof nappy' sandwiched between the 2 pairs of Dr Hill's finest. The carrier bag's handles protruded at the waist, which enabled the slippery nappy to be pulled up, but added nothing to the overall sartorial elegance. Nevertheless, I was suitably protected for the high speed descent of Llanberis Pass and the ride back to Bangor.
If I recall correctly, before the introduction of Tracksters there were few alternatives: Adidas tracksuits (only available as top and bottoms) and a similar 'tracksuit' from M&S.
N