Sgian Dubh casual, formal, both?

[Tommy Hunt]

Hi Tommy-- I think that Galb has pretty much answered this; but since you asked, virtually every book published on highland dress (with the lone exception of Thompson's "So You're Going To Wear The Kilt", first published in 1979) tends to make a clear distinction between "day" and "evening" wear, including sgians dubh.

We posted at the same time.