Chest: Measure with the tape positioned under your arms, the fullest part of your chest, the tape should sit across your shoulder blades. Ensure the tape is horizontal and taut. Hip: With your feet locked together, wrap the tape around the fullest part of hip. Ensure the tape is horizontal and taut. | Waist: The tape should be positioned just below your rib cage. Ensure the tape is horizontal and taut. |  |