When trying to decide between two sizes, choose the larger size for a better fit.

SizeChest/BustCup SizeWaistHips
X-Small (2-4)34''27''36.5''
Small (6-8)35.5''30.5''38.5''
Medium (10-12)37.5''32.5''40.5''
Large (14-16)40.5''35.5''43.5''
X-Large (18-22)42.5''37.5''45.5''