While relaxed, measure around the fullest part of your chest but be sure to keep the tape under your arms.
Keep the tape relaxed and measure around the smallest part of your natural waistline.
Low Hip (for Pants)
Standing with your feet slightly apart, measure around the fullest part of your body.
If you have a pair of pants that fit you well, measure the inner part of the pant leg from the crotch seam to the bottom of the leg.
High Hip (for Tops)
Measure your circumference approximately halfway between your waist and low hip.