Where is the Bust Measurement Taken?
AppNote Number: ANIN0101
Use the Breast as the Reference.
Round the fullest part of the bust, with the tape parallel to the floor. Measure close to the skin without binding.
In case of doubt...
Breasts come in all shapes and sizes. Bust with smaller breasts and slim body is usually easier to measure. In some cases, it is quite common when someone is not very sure of the exact location of the bustline. In this case, you may use the shoulder blade as the reference point. Round the bust at a level just below the shoulder blade (see figure).