Doctor's surgery today and I was too shy to ask. They were black, viscose light flowing material, not too baggy, with a drawstring and dropped crotch, but the massive selling point for me was that they looked and hung like a long skirt, apart from when she moved. They were gorgeous! She also styled them brilliantly with nice sandals and a linen shirt tucked in.
The very closest picture online I can find is in this link, but although it is safe to open, I wouldn't trust ordering from the site. Please help me find them.