Adam Clarke on 1 Chronicles 15:27

A robe of fine linen - A robe made of בוץ buts, probably the tuft or beard of the Pinna Magna, a species of muscle found every where on the shores of the Mediterranean, growing sometimes, as I have seen, to a foot and a half in length. I have seen a pair of gloves made of this very rich stuff; the color is a deep dark yellow, something inclining to what is called the lilac. The buts or byssus was not heard of in Israel before the time of David: after that it is frequently mentioned.