Rosanna Wire-Free or Angelina Underwire: Which Bra Cup Is Right for You?
As the founders of The Bra Lab, one of the questions we hear most often is: “Should I choose the Rosanna or the Angelina?” We designed both cups to...
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"OMG I LOVE this bra and how customizable it is. Instead of needing to get a bunch of different bras in different colors you can just get different straps and backs!"
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"Customer for life! I just got mine in the mail and oh my gosh!! I'm in love! Time to buy a ton of backless shirts that I've never been able to wear before. The fit is amazing."
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"Since I’m a bigger size, I can’t go without a bra, but I’m obsessed with backless tops and dresses. This back piece is PERFECT to wear with those pieces. It’s basically invisible and I love it."
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"I'm so happy with my set! It's a struggle finding bras that have big cups and small bands and I LOVE the idea!"
September Free Strap of the Month: Black & White Stripe
Meet Verbier—our classic 1-inch shoulder strap in crisp white and black stripes. Get yours free with your September cup purchase.
Simply enter your usual bra size—such as 34D—into our size converter to find your corresponding TBL cup number and band size.
Select your recommended cup size, then choose the cup style and color that best suit your fit preferences and wardrobe.
Choose the recommended band size to complete your bra. Add optional shoulder straps for more styling possibilities, including strapless, halter, crisscross, and traditional configurations.
Because the cups, bands, and straps are interchangeable, you can change the fit, color, or styling without purchasing an entirely new bra.
Not sure which size to choose? Email shop@thebralab.com for personal sizing assistance before you order.
We’re sisters, innovators, and women who believe getting dressed should feel easier—not more complicated.
As the founders of The Bra Lab, we set out to rethink the products women rely on every day. Each of our designs begins with a real wardrobe challenge and one simple question: How can we make this work better?
By combining innovative fabrics, thoughtful design, and smart technology, we create intuitive pieces that adapt to you. Our products are multiuse, multiway, and designed to work together—giving you more comfort, more flexibility, and more possibilities for every outfit.
Created by women, for women—and made to move through life your way.
Bras needed a breakthrough, so we took them apart and started over.
Our innovative dual side-clasp design reimagines the traditional bra, creating a clean, smooth look that works beautifully under more outfits. It also allows us to offer better support and an expanded range of up to 80 sizes.
Building your bra is simple: use the size converter on any product page, choose your cup style and color, then add a back band and optional shoulder straps. Every piece works together, so you can interchange cups, bands, and straps to create the fit, function, and look your wardrobe needs.
One bra system. Endless possibilities. No outdated rules.
As the founders of The Bra Lab, one of the questions we hear most often is: “Should I choose the Rosanna or the Angelina?” We designed both cups to...
Read moreFinding a strapless bra that actually stays up can feel impossible. Most strapless bras slip, dig, or require constant adjusting—turning what shoul...
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