Cuff are the decorative part at the bottom of a coat, tunic or dress sleeve, either turned back or with a facing of material added on. In some periods, for example the seventeenth century, separate decorative lace cuffs were worn on top of the jacket or gown sleeve. In the early Middle Ages cuffs were made so that they could be turned down over the hand for warmth and these were often fur-lined. In certain ages cuffs have been decorative features of display as in, for instance, the later seventeenth and early eighteenth centuries. Whether on a coat or shirt, cuffs have been fastened at various times by buttons or links.