Pleats all round

[figheadair]

I've not seen this illustration before (perhaps it has been posted prior to this)
This is attributed as Lord Mungo Murray (1668-1700) on another forum.
What stands out to me among all the rest of it - is that the pleats appear all round.

There are a number of similar portraits of that period that show pleats all the way around. These may provide evidence of the use of a draw-string as a gathering mechanism. Look at the portraits of Lord George Murray and that of the MacDonald Boys for example.