Mohair’s a bit of a confusing fabric. It’s derived from the curly hairs of the shaggy Angora goat, but it isn’t called Angora…because that’s also a distinct kind of wool derived from another animal, the Angora rabbit. It’s one of the oldest fabrics in use, dating as far back to the 15th century in Turkey. But it wasn’t until the swinging ‘60s that we ca…