Unsure of your size? Experiencing fit issues? Even minor changes in weight and body composition may cause your bra size to fluctuate. To find your best fit, follow the instructions below.
While wearing a well-fitted, unpadded bra (not a push-up or sports bra), place a measuring tape around your back, underneath your arms, and above your bust , keeping it snug and straight across your back as you take the measurement. If it’s an odd number, round up to the next whole even number—a measurement of 31", for example, should be rounded up to 32". This is your band size—the number in a bra size.
Place the measuring tape around your back and over the fullest part of your bust. Leave the measuring tape looser on this measurement, and make sure the tape is completely horizontal around your back.
Subtract your band measurement from your chest measurement. The difference represents your cup size—the letter in a bra size—with each inch correlating to one cup size. Refer to the Cup Size Chart below: For example, a chest measurement of 36" and a band measurement of 32" results in a difference of 4", or a D cup. In this case, the bra size needed is a 32D.