Speaking of' the trouser'...
This distinguished check-on-check pattern with a formal feel dates back to the early 19th century, when it was first designed by the Countess of Seafield, in the valley of Glenurquhart, Scotland
My nana - who was coincidentally also Scottish- wore a very similar pair in the 70's. She worked in a sponge factory and teamed hers with a tabard and a fag.