Orion, which is behind Black Level, Cottelli, NO:XQSE and Late-X among others, uses a shared chart for women's clothing: XS (32/34) bust 74–81, waist 59–64, hips 84–91 cm. S (36/38) bust 82–89, waist 65–73, hips 92–98 cm. M (40/42) bust 90–97, waist 74–81, hips 99–104 cm. L (44/46) bust 98–106, waist 82–90, hips 105–112 cm. XL (48/50) bust 107–118, waist 91–102, hips 113–121 cm. 2XL (52/54) bust 119–130, waist 103–114, hips 122–132 cm.
Other brands have their own charts. Obsessive publishes a model-specific chart for the 859 corset with four measurements, where L/XL is bust 95–104, underbust 78–86 and waist 78–87 cm. If a retailer's chart says something different from the manufacturer's, the manufacturer's applies – in our reviews they sometimes differ by a whole size.