1 - Chest
Measure around the fullest part of your chest, just under the arms, keeping the tape level and snug, but not tight.
2 - Waist
Measure at the smallest part of your waist. This is usually below the rib cage and above the hip bone.
3 - Hips
Measure at the fullest part of your hips and bum. Keep the tape level and snug, but not tight.