A - Circumference across the breasts:

Chest circumference is measured with a tape measure horizontally, not too tightly and directly at breast height.

B - Circumference under the breasts:

Horizontal body circumference, measured directly below the chest.

C - Waist circumference:

It is measured horizontally at the narrowest point of the body or in the middle between the rib arch and the hip bone.

D - Hip circumference:

The circumference of the hips is measured with a tape measure at the widest point of the hips.