Quote Originally Posted by Dughlas mor View Post
I think we are talking about what are commonly known as Piper`s hose. The double fold gives a thicker looking cuff, and perhaps a bit more adjustability on various leg lengths.
You have a huge latitude with those things! If unfolded they go way up your thigh.

The idea, I think was 1) to have the ability to get exactly the same 'look' with bandsmen of various heights and 2) the extra thickness was considered stylish amongst the Pipe Band people.

#1 is great in theory, but what you end up with is loads of bandsmen who don't know how to wear their "Pipers Socks" properly leading to wild variation within the same band.