Measure Yourself! The Essential Trusst Bra Fitting Guide

Every woman is familiar with the struggle of searching for the perfect fitting bra. You head into dressing room after dressing room, trying on different styles in the hopes of finding “the one.” Push up, convertible, T-shirt, balconette, the ever-elusive try them all, yet you still find yourself walking away with bras that leave deep grooves in your shoulders or ride up when you lift your arms.

Like your favorite pair of jeans, the right bra can make or break the way the way you feel in your own skin. An ill-fitting bra can cause countless problems, from straps that constantly slip down your shoulders to underwire that digs into your ribcage – not to mention a band that won’t seem to stay put no matter how tightly you fasten it.

If you’re facing these issues, you are not alone: An estimated 80% of women are wearing the wrong bra size. Take it from Oprah, who, in 2005, pioneered a bra revolution in which she urged women across the United States to “rise up and get a proper bra fitting.” And with the average American bra size increasing thanks to a better understanding of correct sizing, it seems there’s no time like the present to heed Oprah’s advice and finally find your perfect fit.

How is a bra supposed to fit?

Measure Yourself! The Essential Trusst Bra Fitting Guide

A surefire way to tell if you’re wearing the correct band size is to conduct the band test: Stand in front of a mirror and look at how your bra band sits against your body. A well-fitting bra should have a band that fits snugly against the body and is level and parallel to the floor. And you should only be able to fit two fingers underneath the band – any more than that means your band size may be too large.

Secondly, look to your cups to see if your cup size is accurate. Your breasts should fill up your cups exactly. If your cups are gaping or puckering from being too large or, conversely, are causing a “quad-boob” effect (spillover from the top or sides of your bra) from being too small, then it’s time to reevaluate. Check out our Fit Tips for additional information on how a bra should fit.

If, after conducting the band test, you think you’re wearing the wrong-sized bra, it’s time to take new measurements! You can always head over to your local lingerie store for a professional bra fitting (Make an appointment at Trusst’s Pittsburgh headquarters to schedule a fitting just for you).

However, if you’re running low on time or prefer the do-it-yourself route, we’ve put together this easy-to-follow bra fitting guide to help direct you towards your proper bra size. We at Trusst believe finding your proper bra size should be a cinch, and we’re committed to leading you towards your perfect fit so you can get the all-day comfort that you deserve.

How to measure yourself for a bra

You’ll need:

  • Your most comfortable, best-fitting underwire bra (the bra should be non-padded and non-minimizing)
  • Measuring tape

Ensure that the tape is always parallel to the floor when taking measurements. Record all measurements to the nearest quarter inch.

  1. Stand up straight and relax. Don’t try to protrude or suck in your ribcage – breathe normally and comfortably.
  1. Wrap the tape around your ribcage; ensure it sits snugly beneath your breasts. You may need to lift your breasts in order to position the tape correctly. This measurement corresponds to your band size.
    Measure Yourself! The Essential Trusst Bra Fitting Guide
  1. Wrap the measuring tape around your back and measure at the fullest part of your bust (across the nipple). Write down this number.

Handy tip: use a mirror to ensure the measuring tape is level with the ground and isn’t slipping in the back.

  1. Head over to our bra fitting calculator, the Fit Calculator, to find your size and measurements! (Note that the exact size you need may vary from bra to bra.)


Find the perfect bra

Once you’ve calculated your bra size, it’s time to find a style and shape that works for you!

Trusst bras are engineered to provide D+ women with maximum style, support, and satisfaction. Our bras are made with fuller-coverage, foam-lined cups to prevent show-through and wide, buttery-soft straps that reduce shoulder strain. Additionally, all of our bras are specially fabricated using our patented BAST™ system. It lifts over 80% over your breast weight and redistributes this weight evenly across your core, and replaces underwires so you’ll never have to deal with poking wires again! Lastly, Trusst bras are all crafted from our signature moisture-wicking, antimicrobial jersey lining, designed to keep you cool and boob-sweat-free throughout the hot summer.

Keep reading to find a style you love:


The Dahlia is the perfect bra for any occasion. The neckline, lined with a feminine and delicate lace trim, is what makes the Dahlia unique -- it adds a little something special to every outfit.

Handy tip: the Dahlia band runs snug. If you measure between band sizes, size up one band size and down one cup size for this bra.


Far from your standard everyday T-shirt bra, the Marjory is crafted to be ultra-comfortable and ultra-versatile. Currently offered in a creamy ivory shade, this bra promises to keep you supported no matter the occasion.


The Jessica beautifully combines the unbeatable support and coverage of our BAST™ system with the delicacy of a bralette. With its plunging neckline and dreamy lace details, the Jessica is engineered to give you 24/7 satisfaction.
Measure Yourself! The Essential Trusst Bra Fitting Guide


Our most popular bra, the Suzanne is the perfect day-to-night bra. It has the versatility and comfort of the Marjory but contains a pop of lace that makes it look -- and feel -- as chic as the Jessica. If you’re looking for a bra that feels special no matter the occasion, then look no further than the Suzanne!

If you are having trouble deciding on styles and/or on your specific sizing for each bra, don’t hesitate to contact for assistance.

As a female-owned and operated company, we at Trusst are intimately familiar with how important it is to find a bra that fits and works for you. That’s why we’re committed to guiding you towards your proper bra size, and that’s why we’ve spent years perfecting our revolutionary bra technology. We want to continue to engineer the best bras for D+ women and to inspire each of our customers to feel beautiful and confident in her own skin.

You’ve read our guide and measured yourself -- now it’s time to start hunting for your new favorite bra! Visit our Pittsburgh headquarters to triple-check your measurements and try on our bras, designed exclusively for D+ women. We can’t wait to meet you!

August 10, 2018 by Brandi Darby