Being a piper, ghillies are required in every Pipe Band (except those few who still wear spats), and expected of solo pipers as well.

Since I bought my first pair of ghillies c1977 they've been the only thing I've ever worn with kilts, except for the buckled brogues that I wear whenever I'm wearing tartan hose.

BTW those first ghillies, made by Keltic, where just about the most comfortable shoes I've ever owned, and I wore them on a regular basis up through the mid-1990's, when the tops finally began to look dodgy. I had had them re-soled six or seven times.

But finally in the 90's I had to retire those ghillies and switch to my "new" pair, another pair of Keltics, which I bought in the 1980's, which I still wear.

From 1977 to 2010 on two pair of ghillies! Pretty good.