The Olivier Single Monk Strap - NeroOur single monk strap exudes elegance with its sleek lines and stylish buckle. Luxuriate in the simplicity of the Olivier. Runs full size large (order full size down from regular US dress shoe size). For example, if you normally wear a size US 10 dress shoe, order a size 9 Alternatively, order one and a half sizes below your Brannock device measurement. For example, if you measure a 10 on the Brannock, order a size 8. 5 Full grain Italian calfskin