Black YsL Saint Laurent belt authentic Width:3.0cm/1.18in. EU 105 – US: 37-38-39, Waist (in): 39.37-41.31. EU 100 – US: 34-35-36, Waist (in): 36.61-39.37. EU 95 – US: 32-33-34, Waist (in): 34.25-36.61.