180/82a pants should wear size l at the waist. Pants 180/82a means pants with a height of 180cm and a waist circumference of 82cm, that is, a waist circumference of 2.6 feet, about 33-34 inches, so the waist circumference of 180/82a pants is an L-size. Waist circumference is the horizontal circumference passing through the center of navel, or the circumference connecting the lowest point of rib with the midpoint of the top edge of iliac crest.

At the end of expiration and before inhalation, measure with a soft ruler. In the new definition of the International Diabetes Federation, there are strict regulations on the measurement of waist circumference. Waist circumference data must come from the middle plane of shoulder width, the lower edge of rib arch and the upper edge of iliac crest, which is neither the umbilical plane nor the maximum convex plane.