Frequently Asked Questions

Our AI asks you questions about your current fit, preferences, and lifestyle through a natural conversation. Based on your answers, it analyzes your needs using real sizing data from 1,700+ bras, with size translation across 33 brands, and recommends products matched to your unique shape and size.

Measuring gives the most accurate results, but it's optional. Our AI can work with your current size and fit issues as a starting point. If you want to measure, we have visual guides to help you get accurate measurements at home.

Yes! The fitting service is completely free to use. We earn a small commission when you purchase through our recommended links—at no extra cost to you. This is how we keep the service free for everyone.

Creating an account lets us save your fit profile for future visits, but you can also use the service as a guest. With an account, you can save favorites, track your fit history, and get better recommendations over time.

No. A soft tape measure gives the most accurate starting point, but our AI can work from your current size and the fit problems you are having, and suggest where to go from there. If you do have a tape measure, our visual guides show exactly how to measure your band and bust at home in about two minutes.

The AI is a fast, free starting point that narrows down your likely size and the styles that suit your shape, based on real sizing data across 33 brands. It is not a replacement for trying a bra on, since every brand and body differs, but it gets you to a much better starting size than guessing, and it is honest about when to try a couple of sizes.

Bra sizing isn't standardized across brands. A 34C in one brand might fit like a 32D in another. Our AI accounts for these brand-specific differences and recommends the right size for each brand.

Sister sizes are sizes with the same cup volume but different band sizes. For example, 34C, 32D, and 36B are sister sizes. If your band size isn't available, a sister size might give you a similar fit. Check out our sister sizes guide for more details.

A well-fitting bra should: have a band that sits level (not riding up), cups that fully contain your breast tissue without gaps or spillage, a center gore that lies flat against your chest, and straps that stay up without digging in.

This is completely normal—most women have some asymmetry! We recommend fitting to your larger breast for comfort. Some styles with stretch lace or molded cups accommodate size differences better. Our AI can suggest styles that work well for asymmetry.

In US sizing, DD is followed by DDD (sometimes written E), then DDDD (sometimes G), then H, I, J and up. In UK sizing, DD is followed by E, F, FF, G, GG, H and up. So the answer depends on whether the brand uses US or UK lettering, which is a major source of confusion. See our guide to cup sizes in order for the full charts.

Keep the band number the same (a UK 34 is a US 34) and convert the cup letter. Up to a D the letters match; above a D, a UK E is about a US DDD, a UK F is about a US DDDD, and a UK G is about a US H. It is approximate because brands vary, so we translate every size across 33 brands on our size-translator page.

Firm and level, not loose. You should be able to slide two fingers under the band at your back with a little resistance, and it should stay parallel to the floor without riding up. A new bra should fit on the loosest hook so you can tighten as the elastic relaxes. The band provides 80-90% of your support, so getting it right matters most.

Yes. BraFinder specializes in the large-cup sizes mainstream retailers skip. We track bras well beyond a DDD, into H, I, J, K and larger, from full-bust specialist brands like Panache, Freya, Fantasie, and Elomi. If you have struggled to find your size at regular stores, this is exactly who we are built for.

Absolutely, this is one of the hardest sizes to find and one of our specialties. Brands like Freya and Panache go down to a 28 band while carrying cups up to a K, so a 30J or 32K is realistic here even though most retailers do not start their bands until 32 or 34. Our size finder points you straight to the brands that carry your combination.

Full-bust means a large cup (about a UK D/DD and up) on any band, including small ones. Plus-size means a large band (about 38 and up) at any cup. They are different: a 30J is full-bust but not plus-size, a 44C is plus-size but not full-bust. Knowing which describes you points you at the right brands.

The British full-bust specialists: Panache (great value and sports bras), Fantasie (side support for wide-set shapes), Freya (fashion-forward, down to a 28 band), and Elomi (plus-size full-bust to a 48 band and K cup). Each is engineered for a large cup rather than scaled up from a small one, which is why they fit and support so much better above a DDD.

Most mainstream retailers stop around a 40 band and a DDD cup, so anyone larger, or anyone with a small band and a big cup, falls outside their entire size grid. It is not that your size does not exist; it is that those stores do not carry it. Full-bust specialist brands do, and BraFinder brings them together in one place.

The center gore should tack flat against your breastbone. If it floats off, the cup is usually too small, so the tissue pushes the wires and gore forward, size the cup up first. It can also be a shape or wire-width mismatch, or a close-set breast shape that suits a plunge better. Our chat can walk you through diagnosing it.

Spillage (the 'quad boob' look) almost always means the cup is too small to hold all your tissue, so size up, often by more than one cup, since cup size is relative to the band. If you only spill at the sides, it is usually wide-set tissue that needs a side-support cup, or tissue that was never scooped into the cup when you put the bra on.

Gaping means either the cup is too big (empty space all around, size down) or the cup shape is too deep for a shallower breast (fits at the bottom but gaps at the top). Shallow shapes do best in molded, demi, or balconette cups rather than deep plunges. One-sided gaping is usually normal asymmetry, fit the larger breast and pad the smaller side.

Almost always a fit problem, not proof you can't wear underwire. The most common cause is a cup that's too small, so the wire sits on breast tissue instead of flat on your ribcage. Other causes are the wrong wire width for you, a worn or broken wire, or a loose band letting the wire shift. Size the cup up first, and if wire never suits you, modern wireless bras support a full bust.

Usually the straps are too loose (re-tighten them), the band is too big and rides up (which drags the straps off, size the band down), or the straps sit too wide for your shoulders (use a racerback converter clip). Sloped or narrow shoulders do best with racerback, halter, or cross-back styles that anchor the straps centrally.

Back bulge is usually the band, not your body: a band too tight pushes tissue over its edge, a narrow band concentrates pressure, and a worn band catches tissue. Try a wider 3-4 hook band that spreads support, size the band up (and cup up a letter) if it digs, and replace stretched-out bands. Some of that 'back fat' is also breast tissue that belongs scooped into the cup.

No, never. We don't ask for photos and don't have any photo storage. Our AI works entirely through text conversation. Your privacy is sacred to us.

We collect the information you share in conversation (measurements, preferences, fit issues) to provide recommendations. This data is encrypted and never sold. You can delete your data at any time from your account settings.

Yes. All data is encrypted end-to-end using 256-bit encryption. We follow industry best practices for data security. See our privacy policy for full details.

We recommend checking your fit every 6-12 months, or whenever you experience changes like weight fluctuation, pregnancy, nursing, or menopause. Your body changes, and your bras should change with it.

Many women start needing larger bras in the first trimester. We recommend getting fitted around week 12-16 and again in the third trimester. Look for bras with room to grow and easy nursing access if you plan to breastfeed.

Absolutely. We have specific guidance for post-mastectomy and reconstruction fitting, including information about prosthesis bras, WHCRA insurance coverage, and trusted specialty retailers. Our AI handles these conversations with extra sensitivity.

We recommend products from trusted retailers including major brands and specialty stores. When you click a product link, you're taken directly to the retailer's website to make your purchase.

Return policies vary by retailer. We recommend checking the return policy before purchasing. Many retailers offer free returns on bras. If something doesn't fit, come back and chat with us—your feedback helps improve future recommendations.

No, we don't sell bras. We're a fitting service that recommends products from other retailers. This lets us recommend the best options across many brands rather than being limited to our own inventory.

Return policies are set by each retailer, not by us, so check the policy before you buy, many retailers offer free returns on bras. Because fit varies between brands, we suggest ordering your best size plus a sister size when a retailer allows easy returns, so you can compare. If something doesn't fit, come back and chat with us to refine the recommendation.

We earn a small commission when you buy through some of our outbound links, at no extra cost to you. That is what keeps the fitting service free. Our recommendations and rankings are never influenced by affiliate relationships; we surface the best fit for you, and affiliate status is never a factor in our Fit Score or our editorial picks.

Our personalized Fit Score is driven mainly by size availability in your translated size, then breast-shape match, support level, style and coverage preference, life stage, and wire preference, with every point shown as a plain-language reason. Our editorial 'best of' picks are chosen for construction and fit reputation, then surfaced as live catalog picks. Affiliate status is never an input to either.

Hand-wash in cool water with a gentle detergent when you can: soak 15 minutes, swish gently (never scrub or wring), rinse, press out the water, and air dry flat. If you machine-wash, use a mesh lingerie bag, fasten the hooks, run a cold delicate cycle, and never tumble dry. Heat and agitation break down the elastic that supports you.

Most bras last 9-12 months with regular wear, sooner if worn daily or washed hot. Replace a bra when the band no longer feels firm on the tightest hook, the elastic is stretched and wavy, the cups have lost their shape, or an underwire is warped or poking through. Since the band provides most of the support, a stretched-out band means the bra no longer does its job.

At least three to rotate, so each one gets 48 hours off between wears to let the elastic recover, which roughly doubles how long they last. A practical everyday rotation is three to five: a couple of smooth t-shirt bras, a supportive full-cup, and a sports bra, plus specialty pieces (strapless, nursing) as you need them.

Rotate at least three so each rests between wears, hand-wash or use a lingerie bag on a cold gentle cycle, never put them in the dryer, and store them flat with the cups un-nested so molded cups keep their shape. Protecting the band and strap elastic is the whole game, because that elastic is what supports you, and heat is its worst enemy.