Measure your actual body measurements wearing only underwear, using the image on the left as a guide. This will give you a better fit than measuring over clothes, or clothes you already have. When you have your actual body measurements, the table below will give your size.
BUST: loosely measure around the fullest part.
WAIST: measure comfortably around the narrowest part of waist.
HIPS: measure around the widest part.
INSIDE LEG / TROUSER LENGTH: measure from the top of your inside leg at the crutch to the hem.
When you have your actual body measurements, this chart will give your size.