If you have a strapless bra, place the bra against your breasts instead. A traditional bra will have two straps that attach the bra cups to the back of the bra and run up and over your shoulder to the back.

Skip this step if your bra has a clasp in the front or side. Make sure that clasps are aligned vertically. Be careful not to off-set the hooks and eyes.

Some bras have an adjustable strap in the front in addition to the clasp. After you secure the clasp, you can pull on the strap to tighten the bra.

If a newer bra can be fastened on the middle or tightest hooks, you may need a smaller back size.

You can remain standing or sitting up straight if this isn’t comfortable for you.

If you’re in front of a mirror, you may be able to see this extra tissue.

Some bras do not have underwire. If that’s the case, then just make sure the bottom of the bra runs smoothly across your body.

If they’re too tight, then you’ll feel constricted near the straps and may even feel them digging into the skin of your shoulders. The clasps are the plastic things on the back of the bra—each strap will have one.

If the straps are too loose, they can fall down off your shoulders all the way to your elbows.

If you can comfortably wear a new bra on the tightest hooks, consider going down a band size. You should wear new bras on the loosest hooks except when pregnant.

The cup size may be too large if your breasts don’t come close to filling the cup. The cup size may be too small if your breasts overfill the cup.

Your breasts spill out of the top of the bra. The straps or band of the bra cut into you. The bra feels incredibly tight—like you can’t breathe in it. The bra is so loose that the straps fall down no matter how much you adjust them. You can can comfortably fit two fingers between your side and the band of the bra.

It’s super important to get the right band size. If your bra is constantly riding up in the back or the straps are falling off the shoulder, size down on the band, while at the same time staying at the same cup size or going up one cup size. [14] X Research source [​​v161361_b01]. 14 April 2020. If your under bust measures over 36" (91 cm), take a bust measurement while lying on your back. Average the two bust measurements, then calculate the cup size.

For example, an A cup has a 1" (2. 5 cm) difference, while a B cup has a 2” (5 cm) difference.

Go to several places to get a bra fitting done before purchasing a bra.

If you really aren’t sure about the results of the fitting, try on as many bras as you can, or get another opinion from a professional.

Measuring regularly is a good habit to keep up if you want to wear the right bra and be able to put it on correctly.