The virtue of the girdle
“Now,” said the lady, “ye refuse this silk, for it is simple in itself, and so it seems, indeed; lo, it is small to look upon and less in cost, but whoso knew the virtue that is knit therein he would, peradventure, value it more highly. For whatever knight is girded with this green lace, while he bears it knotted about him there is no man under heaven can overcome him, for he may not be slain for any magic on earth.”