EB FIT GUIDE

Our fit is unconventional by design—and we’re here to make it easy. We fit over 120 sizes into seven adaptive sizes.

20,000+ Women Love the Fit

Lifts Without Wires

The EB Core® supports without poking, pinching, or painful wires.

Magical, Moldable Fit

Smoothing, adaptive fabric shapes to your body in 3 wears.

Risk-Free for 60 Days

Wear it, wash it, return it free.

Smooth, invisible support that disappears under clothes.

From knits to fitted tees, EB bras, bra tanks & underwear disappear under clothes for a smooth, wire-free finish — the kind you can’t see, but feel all day.

Use the size guide and easy calculators on every product page to find your recommended size in seconds. And if you still have questions, contact our fit experts for extra help finding your best fit.

FEEL GOOD FIT TIPS

Getting the perfect fit may feel a little different—by design.

Step In

We suggest you step in and pull it up over your hips. This applies to all styles, and our high-stretch fabric is built to bounce back.

Adjust the Band

Position the band low on your ribcage (front and back). This is intentional—it’s a longline design that offers all-day support by hugging your lower ribs.

Wear Straps Wide

Place the straps over the outer edges of your shoulders—away from your neck—for ergonomic comfort and posture-friendly support.

Stretch to Make it Yours

EB products are meant to mold to you. A snug first wear is normal—the adaptive fabric settles with an assertive hand-stretch or a few hours of wear, shaping to your curves without losing lift.

Our adaptive bras and tanks flex to support sizes B–J and XS–3XL, for a truly custom feel.

60 Second Stretch Tutorial

60 Second Stretch Tutorial

Our seamless underwear fits just like our bras — adaptive, smoothing, and made to mold perfectly to your body. Available in two flexible size ranges, 0–14 and 16–24, for a truly custom-feeling fit.

FAQs

Your EB bra will feel snug (or even downright tight) on the first wear. This is by design. Like your favorite pair of jeans, our proprietary four-way stretch fabric and patented EB Core® work together to mold to your body after about 3 wears, creating a custom-feeling fit with lift and separation, all without wires.

To speed up the break-in process, you can hand stretch the bra where needed, especially in the cups or cleavage area. For more detailed tips, visit our Fit Guide.

We are committed to helping you find your perfect fit. Wear it, wash it, love it, or return it within 60 days. Risk-free.

With our adaptive stretch technology, our bras are designed to mold to your body over time. Like your favorite pair of jeans, after about 3 wears, the bra will relax and adapt to you, creating a custom-feeling fit. During this time, the fabric can stretch up to three inches where needed, if needed. 

If you'd like to speed things up, you can assertively hand stretch the bra where needed (anywhere with uncomfortable tightness or bulging), such as in the cups or cleavage area. For more stretching tips, visit our Stretch Guide. You can also wash your bra, which can help soften the fabric.

To speed up the break-in process, you can hand stretch the bra where needed, especially in the cups or neckline. This can address uniboob, tightness, or spillage.

Take the pads out and hold the center of the bra (between the cups) with one hand and pull the fabric outward with the other, focusing on areas that feel tight. Fit tip: Don’t be afraid to be assertive. Our product designers sometimes even use their fist to stretch the fabric.  For more stretching tips, visit our Stretch Guide.

  1. Step into the bra, even with the hook and eye closure, and pull it up over your hips for an easier time getting it on. Yes! These bras are made to stretch and recover. You’ll be surprised how quickly you get used to this easy trick, and you’ll love how you ‘catch the lift’ in all the right places as you pull the bra into place. 
  2. Wear the band low on your ribcage so it hugs your bottom ribs for maximum support. The band should be considerably lower than conventional bras, especially in the back! (This is part of creating that pro-posture “shelf”.)
  3. Wear the straps wide on your shoulders, away from your neck, where they are designed to sit for ergonomic comfort & posture friendly support.

For more detailed tips, visit our Fit Guide.

If you’re experiencing any fit concerns, we recommend wearing the bra for about 3 wears and hand stretching in the areas that feel tight. You can view our Stretching Guide for detailed tips on how to stretch the bra to help with uniboob, cup spillage, tightness, or other fit issues. Some fit concerns can also be due to a fit that is too loose.

If the issue persists, it may be a sizing issue. We recommend double-checking your measurements or reaching out to our Customer Experience team via the chat bubble, or contact us here.

Wear it, wash it, love it, or return it within 60 days. Risk-free.

Yes. Removable inserts let you balance asymmetry or customize coverage. With our adaptive stretch technology, our bras are designed to mold to your unique shape over time.

Yes. Our medical advisor, board-certified breast plastic surgeon Dr. Naidu, recommends Evelyn & Bobbie bras as a “perfect second-stage healing bra,” thanks to the soft, adaptive material that allows women to comfortably return to daily life.

Some customers place a prosthesis form directly in the cup or use the removable pad opening to insert it. If needed, the opening can be carefully enlarged, as our free-cut fabric will not fray.

As many as 80% of women are wearing the wrong bra size, so we recommend measuring your band and bust to find your Evelyn & Bobbie size.

Due to unique fabric and construction, your EB size may vary slightly by style. Simply click “Size Guide” on each product page and enter your measurements into the calculator.  

If you feel confident in your current bra size, you can also use our traditional bra size calculator, or view the size charts here.

If you are on the cusp, size down, and be prepared to stretch where needed. Still have questions? Reach out to our Customer Experience team via the chat bubble, or contact us here.

We reinvented a century-old bra sizing system because real bodies were never the problem, the system was. Did you know you could be up to 8 different sizes across US and European sizing depending on the brand? So if bra sizing has been confusing and frustrating, it’s not you. At EB, we think it’s time to leave that old broken system in the past. 

Through extensive fit testing and adaptive stretch technology that stretches up to three inches only if and where needed, Evelyn & Bobbie bras fit over 120 traditional sizes into 7 easy sizes (XS–3XL), supporting cup sizes B–K.

Not sure where to start?

Every EB bra lifts with comfort—each in its own way.

The Evelyn Bra

Ultra-lift bodice with scalloped v-neck and smoothing from front to back.

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The Defy Bra

Full coverage and smoothing solution, also optimal for post-surgical and sensitivities.

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