Upper Chest: The upper chest measurement is a measurement taken on females above the bust measurement. The measurement is then taken at an angle close to diagonal underneath the armpits, and then straight across the back.
Under Chest: Measure the girth directly under the chest, holding the measuring tape tight enough, but without strong tension (it should not slip or, conversely, dig into the skin). Keep the tape parallel to the floor.
Waist Width: Stand up straight and breathe normally. Hold the end of the tape measure at your navel and circle it around your back to the front of your waist. The measuring tape should be parallel to the floor and fit snugly around your torso without digging into your skin.
Hip Width: Remove your outer garments, put your feet together, and wrap a soft measuring tape straight and snug around the widest part of your hips. Your hip measurement is the point at which the end of the tape meets the remaining length.