How to Choose the Right Bra Size

Choosing the right bra size is more than a fashion concern. A bra that is too tight or small can give you back aches, and one that is too loose can be very irritating as it slips and shifts with movement that could be potentially embarrassing.

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When deciding what sizes to try on, you should take two measurements. One is under the bust, and the other is over. First, measure around your rib cage, just below the bust. As a rule of thumb, add either four or five inches to make an even number. This is your "band" size. Next, measure around your chest at the fullest point of your bust. Stand up straight, but do not push your chest out. The difference between this measurement and your under bust measurement, gives you an idea of the cup size. If the difference is one inch greater, it is an A cup, and so on, according to how much bigger the bust measurement is. Now you can try on bras in that size and cup.

When putting on the bra, use the middle set of hooks. If it cuts in to your body, use the outer set, before trying a larger band measurement. Lean forward so that the weight of your breasts is fully in the cups. If there is too much overflow in a full-fit bra, the cup is too small. If it wrinkles and is loose, the cup is too big.

Standing straight, raise and lower your arms. If the bra rides up over your breasts, try adjusting the shoulder straps to a longer length. If it is still loose, try a smaller band width.

Remember that material can affect the fit as well, with full support bras often having stiffer material and underwire supports, and sports bras having more "give" for physical activity.