Agree with SHEFFSOUL - I was wearing solatios in '74 along with baggies, which were not a fashion item at the time. The only way to get them was to have them made to measure at a local tailors, in my area Burtons or Hepworths. When they started to become available commercially I stopped wearing them.
I stopped going to Wigan shortly before the 3rd Anniversary and was wearing at that time Falmers jeans, Wrigleys belt, Green flash tennis shoes, cap sleeved T Shirt and Foster Grant graduated sunglasses.... Nice! :-)
Inbetween times there were bowling shirts (original American imports) which were later copied and also made available on the High Street, Hawaiian shirts, neckerchiefs, whistles, baseball caps etc
The clothing was like the music at the time - ever changing.
Have never really been sure why the oversize trousers have been chosen by the retro crowd as the clothing of the time - they really weren't around for that long in the beginning.