SANDAL is also used for a shoe or a slipper worn by the pope and other Catholic prelates when they officiate. It is likewise the name of a sort of slipper worn by several congregations of reformed monks. This last consists of no more than a mere leathern sole, fastened with latches or buckles, all the rest of the foot being left bare. The Cappuchins wear sandals, and the Recollects clogs; the former being of leather, and the latter of wood.