1. Chest
Wrap the tape measure around your upper back, under your armpits and the fullest part of your chest, checking in the mirror to ensure the tape measure is straight. Tape measure should be firm but not tight.
2. Waist
Tape measure should sit around the smallest point of your waist and should be firm but not tight (above belly button and below your rib cage).
2. Hips
Wrap the tape measure around the fullest part of your bottom and around to the front of your hips, checking in the mirror to ensure the tape measure is straight.