How a bra should fit aka am I really wearing the wrong size?
Your bra should be comfortable and not really noticeable throughout the day. It is common for a woman’s bra size to change multiple times throughout a lifetime so if even if you’ve been measured before it is possible that you may need an update. Here are some tips to see if you are indeed due for a refresh!
How to determine bra size aka fix the problems listed above:
You can measure yourself to get a benchmark for your size. The band size is the circumference of your ribcage just under your breasts in inches or centimeters. Your cup size is the difference in measurement from your band size and the measurement of the circumference of your torso around the fullest part of your breast (So, band size of 32" minus bust measurement of 38" = size 32D). Many bra companies will fit true to this measurement, but not all of them. It is important to try things on because there is sometimes variation in the way different brands fit. Troubleshooting a bad fit can sometimes be tricky because cup size is relative to band size — meaning that, for example, a D cup on someone who wears a 32 band size is much smaller than on someone who wears a 38 band size. This is because the cup size is an indication of the difference in measurement from the volume of the breast tissue and the circumference of the ribcage and not a universal measurement of a D cup.
Have you ever heard of “sister sizes”? This describes the possibility of someone being able to wear multiple bra sizes because the cup on different bands are the same on ratio scale. So for example bras labeled 32C/34B/36A all use the same cup. So, to make things a simple and to make you deal with the minimum amount of math and questioning if OMG am I really an A/C/F cup??? we recommend trying on your favorite bra and evaluating the following to determine if you need to change sizes: