Bra sizing is a language—part mystery, part science, and wholly transformative when decoded. The difference between “it’ll do” and “made for you” can be as little as half an inch, yet the results are profound: improved posture, effortless style, and a day that feels lighter. Welcome to the Volarre guide: part Parisian atelier, part modern myth-busting, wholly dedicated to helping you feel sublime.
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Step 1: The Band
Measure snugly around your ribcage, directly under the bust. This number (rounded up to the nearest even number) is your band size.
Step 2: The Bust
Measure loosely around the fullest part of your bust, keeping the tape level across your back.
Step 3: The Cup
Subtract band from bust. Each inch of difference equals one cup size (1" = A, 2" = B, 3" = C...).
If the cup fits but the band is too tight, go up a band and down a cup (e.g., 34C → 36B). If it’s loose, do the reverse. Use our calculator below to find your perfect alternate fit.
Find Your Sister Size
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ThirdLove 24/7 Classic
The smooth operator. Invisible under tees, engineered for lift, and available in half-cup sizes. Praised by Oprah.
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Chantelle C Magnifique
French sculpting with cloud-light support. A go-to for fuller busts and lovers of Parisian luxury.
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Skims Fits Everybody
Modern minimalism. A whisper-light second skin with an inclusive size range and signature palette.
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Natori Feathers
The cult classic. Lace-trimmed, curve-hugging, and always a little mysterious. A favorite of red-carpet stylists.
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Cosabella Sweetie
Italian lace and wire-free comfort. Made for lazy Sundays and artful layering. Gwyneth Paltrow approved.
Shop Now+ References & Sources
- ThirdLove & Oprah: oprah.com
- Jessica Alba on fit: allure.com
- Natori Feathers editorial coverage: vogue.com, nymag.com
- Chantelle & Kate Young: refinery29.com
- Skims campaigns: elle.com
- Cosabella & Goop: goop.com
