Measurements are taken from point to point of product. Multiply measurements of bust and waist for circumference. 

Size Bust   Waist Length
XS 16 - 18inch | 40.6 - 45.7cm 15.3 - 17.3inch | 38.8 - 43.9cm 20.5inch | 52cm
S 17 - 19inch | 43.1 - 48.3cm 16.3 - 18.3inch | 41.4 - 46.5cm 21inch |53.3cm
M 18 - 20inch | 45.7 - 50.8cm 17.3 - 19.3inch | 43.9 - 49cm 21.5inch | 54.6cm
L 19 - 21inch | 48.3 - 53.3cm 18.3 - 20.3inch | 46.5 - 51.6cm 22inch | 55.9cm
XL 20 - 22inch | 50.8 - 55.8cm 19.3 - 21.3inch | 49 - 54.1cm 22.5inch | 57.2cm