FAQs
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For your band measurement, wear it like a bra band around your ribcage and slide it until you feel the tension that's right for you. For your bust measurement, wrap it around your bust the same way and find your fit. The built-in reading window shows your exact number for each measurement — then just check the chart to find your size.
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A flat tape measure can't account for how your body actually feels — breathing, tissue compression, movement. The Fitter lets you test real support by taking a deep breath while wearing it, so your size is based on how it truly feels on your body, not just a number pulled tight against your skin.
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Most of your bra's support — about 80% — comes from the band, not your shoulder straps. That means if your band isn't right, your shoulders end up doing work they were never meant to do. The Fitter is built around getting that one measurement exactly right, so you finally get the real support you deserve.
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Pay attention to where The Fitter sits on your ribcage. The closer it stays to your breast root (the crease right under your bust) without slipping down, the more support and lift you'll get from the measurement — this is your sweet spot for structured, all-day wear. If it's sliding down away from that crease, you'll know that band is too loose to hold you properly.
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Take a deep breath while wearing it. If it feels snug but you can still breathe freely, that's your comfort zone — the size you'll want for long days when you care more about ease than maximum lift. If it feels tight or restrictive on that breath, size up until it eases. You get to feel the difference yourself, instead of guessing which number is right.
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Nope — that's the part The Fitter will handle for you. Once you've found your fit, The Fitter's conversion chart instantly gives you both a Support Size and a Comfort Size, so you always know exactly what to order, whatever the occasion.
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Yes. If a brand runs tight, just go with your Comfort Size — it'll give you the extra ease you need. If a brand runs loose, go with your Support Size instead — it'll snug up the fit so it doesn't gape or slip. Either way, you'll have both numbers from The Fitter, no more guessing.
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Absolutely — that's exactly why The Fitter exists. Bodies change, and a size from a few years ago rarely fits the same today. The Fitter lets you check your true size anytime, privately, at home, in seconds.
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Choose a measurement that is comfortable and will stay in place at the highest part of your rib cage directly under the bust.
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The band should feel comfortable while remaining supportively in place. Take in deep breaths to test the tightness of the band size as your rib cage expands during inhalation. It is also a good idea to do range of motion comfort testing to ensure the band size chosen will not slip down the rib cage.
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Choose a bust size that will keep The Fitter in place evenly around the torso across the fullest part of the bust, without excessively compressing the breast tissue.
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It is recommended to remove your shirt to get the most accurate measurement. However if you must wear a shirt, be sure it is a thin shirt such as a t-shirt or camisole.
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Yes you can wear your existing bra as long as it does not have any additional padding, or compress your breast such as when wearing a sports bra.
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No. The top pick bra style recommendations are just a starting point to guide you in your bra fitting. Be sure to try out as many styles as you’d like to build your very best bra wardrobe.
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It is recommended to use the adjustable sliding closure in order to feel the tightness of a chosen measurement size. This will ensure the most accurate measurement results.
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It is recommended to try on both sizes in a non padded bra to see which cup size you fill out properly.
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At least once a year or as needed during weight fluctuations.
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Weight fluctuations, puberty, pregnancy, breast feeding, menstrual cycle, birth control, hormonal changes, and menopause.