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Bra Styles and Sizing, Explained

One guide per style: what it is, how it's built, which shapes it fits, how to size it, and sizing guides for the moments the rules change: first bra, weight change, surgery, sport, pregnancy and after 50.

Start with the map: every type of bra on one page →

Everyday · careHow Long Do Bras Last?

About 8–12 months of real support with rotation: half that worn daily. But the calendar is the wrong instrument: a bra's age is measured in hooks…

Updated August 2026 · Brasize.ai fit team
Everyday · careHow to Wash a Bra

A correctly fitted bra can be un-fitted by one hot cycle. Cool water, closed hooks, a bag, never the dryer, and the fit signs that the elastic is alr…

Updated August 2026 · Brasize.ai fit team
Life stages · sizing in contextFirst Bra Sizing

The first bra is a fitting problem before it is a shopping problem, and the body it's fitting will change every few months. Here is when to start, ho…

Updated June 2026 · Brasize.ai fit team
Life stages · sizing in contextBra Size After Weight Change

Breasts are partly fat, so weight change moves your size, but not the way most people expect. The band usually moves first, the cup letter often move…

Updated June 2026 · Brasize.ai fit team
Life stages · sizing in contextBra Sizing After Breast Surgery

After surgery the rules change in order: healing first, then comfort, then shape, then size. Here is what to wear and when, how to measure once you're…

Updated June 2026 · Brasize.ai fit team
Sport · sizing in contextSports Bra Sizing by Impact

A sports bra is sized by two things: your measured size and the impact of the sport. Pick the activity below and the guide tells you the support level…

Updated June 2026 · Brasize.ai fit team
Life stages · sizing in contextBra Sizing During Pregnancy and Nursing

Your size changes at least three times between the first trimester and weaning, and the two changes people miss are the ribcage expanding in pregnanc…

Updated June 2026 · Brasize.ai fit team
Life stages · sizing in contextBra Sizing After 50

Menopause changes breast composition, position and often size, usually toward softer, lower and, for many, larger. Here is what happens, why the bras…

Updated June 2026 · Brasize.ai fit team
EverydayT-Shirt Bras

The smooth, seamless molded bra built to disappear under knits. Here is what a t-shirt bra actually is, which shapes it flatters, and why so…

Updated June 2026 · Brasize.ai fit team
EverydayWireless Bras

No underwire doesn't mean no support, but the support comes from somewhere else. Here is where, who wireless bras work for, and the one siz…

Updated June 2026 · Brasize.ai fit team
EverydayBalconette Bras

The balconette is the fitter's favorite for a reason: an open top line that flatters more shapes than any other cup. Here is how it works, w…

Updated June 2026 · Brasize.ai fit team
EverydayBralettes

Soft, wireless, usually alpha-sized: the bralette is comfortable by design and supportive by accident. Here is when it works, when it doesn…

Updated June 2026 · Brasize.ai fit team
Full bustSide-Support Bras

An inner sling at the outer edge of the cup, a taller side panel and a wire set further back: the side-support…

Updated September 2026 · Brasize.ai fit team
EverydayContour Bras

A cup pre-shaped from a single piece of foam, with no seams and a shape of its own whether or not a breast is …

Updated September 2026 · Brasize.ai fit team
EverydayPlunge Bras

A low center gore, angled cups and a neckline that disappears under a V: the plunge is engineered for cleavage and for shapes most bras lea…

Updated June 2026 · Brasize.ai fit team
EverydayPush-Up Bras

Padding placed low and to the side lifts and pushes tissue up and in. Here is what a push-up bra actually changes, by how much, and why sizi…

Updated June 2026 · Brasize.ai fit team
EverydayFull-Coverage Bras

Taller cups, more fabric, more support: the full-coverage bra is the workhorse of the fitting room for fuller busts and softer tissue. Here…

Updated June 2026 · Brasize.ai fit team
EverydayDemi Bras

Half the cup, all of the lift: the demi covers about half the breast with an angled top edge. Here is how it differs from a balconette, who…

Updated June 2026 · Brasize.ai fit team
EverydayMinimizer Bras

A minimizer doesn't remove volume: it redistributes it. Here is what that means for the size you wear, who it helps, and why sizing down de…

Updated June 2026 · Brasize.ai fit team
SportSports Bras

The two sports-bra constructions support in opposite ways, and half of sizing a sports bra is knowing which one you're buying. Here is how t…

Updated June 2026 · Brasize.ai fit team
OccasionStrapless Bras

Without straps, the band does everything. Here is why strapless bras fail, the one sizing rule that fixes most of it, and which shapes and b…

Updated June 2026 · Brasize.ai fit team
OccasionLongline Bras

A longline extends the band toward the waist, and that extra fabric changes what the bra can do. Here is what it adds, who it suits, and how…

Updated June 2026 · Brasize.ai fit team
EverydayFront-Closure Bras

Hooks at the front are easier to fasten and give a narrower center, but there's no band adjustment. Here is what that means for size, and w…

Updated June 2026 · Brasize.ai fit team
Life stagesNursing Bras

Your size changes twice (late pregnancy and when milk comes in) and a nursing bra has to work through both. Here is when to buy, how to si…

Updated June 2026 · Brasize.ai fit team
EverydayUnlined Bras

An unlined bra shows exactly what fits and what doesn't: there's no foam to hide behind. Here is who it suits, why fitters love it for shap…

Updated June 2026 · Brasize.ai fit team
OccasionMultiway Bras

One bra, five strap geometries: classic, crossed, halter, one-shoulder, strapless. The band does the real work.

Updated August 2026 · Brasize.ai fit team
OccasionAdhesive Bras

Stick-on cups for backless nights: the application protocol, the honest lift ceiling, and the skin rules.

Updated August 2026 · Brasize.ai fit team
EverydayCup Construction

Contour vs molded vs spacer vs seamed, decoded once: smoothness, heat, honesty about fit.

Updated August 2026 · Brasize.ai fit team
Life stagesA Parent’s Guide to First Bras

For the adult holding the shopping bag: kind scripts, growth-spurt strategy, and school sport sorted.

Updated August 2026 · Brasize.ai fit team
Life stagesBras Through Menopause

What changes in midlife, why the band is usually the culprit, and the constructions that get kinder.

Updated August 2026 · Brasize.ai fit team
Life stagesBras After Weaning

When to refit, what bridges the settling months, and the honest word about the new normal.

Updated August 2026 · Brasize.ai fit team
Life stagesBras After Breast Reduction

Your surgeon’s timeline governs early; the eventual refit is a fresh start worth doing properly.

Updated August 2026 · Brasize.ai fit team
EverydayWhat Are Underwires Made Of?

Coated spring steel, mostly: why it supports, why it pokes, and why the washer is its predator.

Updated August 2026 · Brasize.ai fit team
EverydayWhy Elastane Dies

The stretch fiber is the mortal one: what kills it, ranked, and why rotation math is chemistry.

Updated August 2026 · Brasize.ai fit team
EverydayLace vs Microfiber

Smooth vs airy is an engineering choice: the honest trade, line by line.

Updated August 2026 · Brasize.ai fit team
EverydayBra Anatomy

Every component named, located and given its job: the legend for the whole site’s map.

Updated August 2026 · Brasize.ai fit team
EverydayRecycling & Donating Bras

Three exits for a retired bra, what charities can use, and why the greenest drawer is the slow one.

Updated August 2026 · Brasize.ai fit team
EverydayRacerback Bras

Straps that meet between the shoulder blades change where the bra pulls. Here is when that helps, what it does to cup fit, and how to size a…

Updated June 2026 · Brasize.ai fit team
How to use these

Style is the third variable

Size describes volume. Shape describes where it sits. Style is the construction that has to fit both, and each guide here tells you which shapes and sizes a style serves, and how its sizing differs from the calculated size.

Shop itAt HauteFlair, our sister retailer

Opens HauteFlair’s own hub page; use your measured size there. HauteFlair is owned by the same company as Brasize.ai; that relationship never changes the sizing math, charts, or fit advice on this page. How this site makes money.

Start with the size

Two measurements. Then pick the style that fits your shape.

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