It was my understanding that House of Bruar sources their woolens - Tweeds, Mohair blends, Lambs wool, Merino, etc.... locally from within the British Isles from - Harris Tweed, Lochcarron of Scotland, Lovat Mill , British Weaving Partners, etc... , to include some european continent Wool & Linen makers. I was told the same applies to Cording. I state that due to inquiring at my local tailor shop, when I was in being fitted for a new suit, they stated what was available to them, andvwhat was available from other It is likely the offerings are not the same as that which was available 30 - 40yrs ago, but in the 21st Cent. it is to be expected as the trend for everything is for it to be "lighter" or "less taxing" , so lower thread counts, lighter ounce textiles in the preference of the masses. As was already stated the same applies to rifles/shotguns & calibers/bores, the masses want lighter. So, the fact traditional clothing offerings being lesser is of no surprise.
Which I am surprised there hasn't been the errant comment poking fun at this thread, as some think the notion of wearing anything other than the latest greatest modern offering is "playing dress-up".