Contour 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 in it: the contour bra is the smoothest thing under a t-shirt and the pickiest about shape. Here is how it is made, who it fits, and how to size one.
What is a contour bra?
A contour bra, also called a molded or moulded bra, has cups heat-formed from a single sheet of foam or spacer fabric over a breast-shaped mold, then covered in fabric. There are no seams inside the cup, no darts, and no fabric to stretch: the cup arrives at its final shape and keeps it. That is the whole point and the whole problem. Under a thin knit nothing shows, the nipple is covered, slight asymmetry is hidden. On a breast that does not match the mold, the cup gaps where the breast is shallower than the foam and overflows where it is fuller.
Contour is a construction, not a cut. T-shirt bras are contour bras by definition; so are many plunges, demis, strapless bras and spacer bras. A push-up bra is a contour bra with extra foam at the bottom and side; a contour bra proper has an even, thin layer and adds no volume. The cup construction guide sets contour beside cut-and-sew and spacer in detail.
How it's built
| Part | Detail |
|---|---|
| Cup | One piece of polyurethane foam, 2 to 6 mm, molded to a fixed dome; spacer versions use a knitted sandwich instead of foam |
| Cover | Microfiber or lace laminated or sewn over the foam; the cover does no shaping |
| Wire | Standard or plunge wire in a channel at the cup edge; wireless versions rely on a wide underband |
| Gore | Often a molded bridge rather than a fabric one; low on plunge cuts |
| Straps | Adjustable, sometimes convertible; the cup does not need them to hold shape |
| Band | Standard powernet; contour bands are not firmer than seamed ones |
Types and variations
| Type | What changes | Best for |
|---|---|---|
| T-shirt contour | Thin even foam, smooth cover | Under knits; the default contour bra |
| Spacer | Knitted two-layer cup, no solid foam | Warm climates; larger cups that find foam heavy |
| Contour plunge | Low gore, angled cups | Deep necklines, close-set shapes |
| Contour demi | Half coverage, gentle edge | Shallow and even shapes |
| Contour strapless | Foam cup, silicone edge, wide band | Nothing on the shoulders; best to a DD |
| Wireless contour | Foam cup on a firm underband | Comfort; A to D reliably |
| Memory foam | Foam that softens with body heat and shapes to the breast | Slightly more forgiving of shape than standard foam |
Which shapes it fits, and why
Tap a breast shape. The dashed line is this cup on that profile; shading shows where the shape leaves a gap or spills.
Not sure of your shape? Use the shape finder.
The mold is drawn for a round breast of average projection, so that is the shape contour fits without argument. Teardrop and bell shapes fit demi and plunge contours well, because those cuts end before the top of the breast where the mold would stand empty. Slight asymmetry is the one thing contour handles better than a seamed cup: the fuller side fills the foam, the smaller side sits behind it, and nobody can tell.
The shapes it fights are the ones that disagree with the mold. Shallow breasts leave a gap at the top of every full contour cup, because the foam is deeper than the tissue; dropping a cup letter trades the gap for a wire on tissue. Projected breasts overflow the top of a contour cup that fits at the wire, because the mold is not deep enough at the apex; going up a letter widens the wire past the root. Both are shape problems that a seamed cup solves and a bigger or smaller contour cup does not.
Who it's for
Anyone dressing in thin knits who is between an A and a DD with a round or slightly full-on-bottom shape: contour is the easy answer, and most people in that block own three. Anyone with mild asymmetry who wants it invisible. Anyone who prefers nipple coverage without padding. Above a DD the case weakens with every letter: the foam gets heavy and hot, the molds get scarcer, and a smooth seamed cup does the same job under most fabrics. Above a G, contour is a niche.
How to size it
| Step | Rule | Example |
|---|---|---|
| Band | Snug underbust, nothing added; contour bands run true | A 34 band for a 33 to 34 inch underbust |
| Cup | Bust minus band, one inch per letter; the foam adds no volume | A contour 34C holds the same tissue as a seamed 34C |
| Shape check | A gap at the top in the measured size means a shape mismatch, not a size error | Try a demi or plunge contour before changing the letter |
| Brand run | US contour lines cut a little shallow; European ones a little deeper | Brand pages on this site note the run |
| Sisters | Same as any bra: down a band, up a cup | A contour cup that fits but rides up wants 32D, not 34C |
Start from the calculator; every size it returns links its sister sizes and its cup page, and the sister size calculator handles the band-down, cup-up move that most style problems come down to.
How it should fit
| Check | Right | Wrong, and what it means |
|---|---|---|
| Top edge | Lies flat on the breast; no wrinkle, no gap, no bulge | Gap: shallow shape or cup too big. Bulge: cup too small |
| Apex | Nipple sits at the deepest point of the mold | Nipple high in the cup: cup too shallow for your projection |
| Wire | On the ribcage all round, gore flat | Wire on tissue at the side: cup too small |
| Under the cup | No air pocket at the bottom; foam touches skin | Air at the bottom: tissue sits higher than the mold expects |
| Band | Level, snug, two fingers | Rides up: band too big |
| Straps | Light; the foam holds shape without them | Straps doing the lifting: band too big |
Common problems and the fix
| Problem | Usual cause | Fix |
|---|---|---|
| Gap at the top | Shallow breast in a full contour; or cup too big | Demi or plunge contour first; then down a letter |
| Overflow at the top | Projected breast; or cup too small | Up a letter, and if the wire then reaches the armpit, switch to a seamed cup |
| Cup looks dented | Foam creased by folding a cup into the other in the drawer | Store cups open; the dent may not come out |
| Hot and heavy | Foam thickness at DD and above | Spacer fabric, or a smooth seamed cup |
| Visible edge under knits | Foam edge sits above the breast (a gap, dressed) | Same fix as the gap: change the cut before the size |
| Fits one side, not the other | Asymmetry of more than a cup | Fit the larger side; a removable insert or a seamed cup for the smaller |
How to wear and style it
Contour is the construction for anything thin, pale, ribbed or clingy: t-shirts, fine knits, silk, jersey dresses. Choose the cut for the neckline (demi or plunge for open necks, full contour for crews) and the color for the fabric; a nude close to your skin tone disappears under white where white does not. Under textured or structured fabric the contour’s smoothness buys nothing, and a seamed bra will often fit better.
Care, lifespan and when to replace
- Hand wash or a mesh bag on cool; never wring the cups
- Dry cups open, never folded into each other; a creased mold rarely recovers
- Replace when the foam has softened or the cups have taken a set from the drawer, usually before the band gives out
Pros and cons
Buying checklist
- Measured size; the foam adds nothing
- Cut chosen for your shape before the neckline
- Top edge flat after a scoop, standing and bending
- Wire on ribcage; nipple at the apex of the mold
Brands known for it
Basic Beauty spacer
Feathers
Norah, Comfort Chic
Perfectly Fit
Deco
Porcelain
24/7 Classic T-Shirt
Vanishing Back
Named lines are examples of the construction, not recommendations; each brand page converts your measured size and notes how that brand runs. The types of bras hub places this style among the others.
Contour Bras: answered
What is a contour bra?
A bra whose cups are molded from a single piece of foam or spacer fabric into a fixed shape, with no seams. It is the construction behind every t-shirt bra and most plunges and strapless bras sold in mass-market ranges. The foam is thin and even; it covers and smooths, it does not add volume the way a push-up does.
What does contour mean on a bra?
That the cup is pre-shaped. "Contour," "molded," "moulded," "seamless" and often "t-shirt" describe the same thing: a cup with its own shape that the breast fills. The opposite is cut-and-sew or unlined, where fabric panels are seamed together and take their shape from the breast inside them.
Is a contour bra the same as a padded bra?
No. A contour cup has a thin, even layer of foam whose job is shape and smoothness; a padded or push-up bra puts thicker foam at the bottom or side to add apparent volume and lift. Every push-up is a contour bra, but most contour bras add nothing.
Why does my contour bra gap at the top?
Usually because your breast is shallower at the top than the mold, which happens on shallow and full-on-bottom shapes. Dropping a cup letter puts the wire on tissue without closing the gap. Change the cut first: a demi or plunge contour ends before the empty part of the mold. If a demi still gaps, then the cup is too big.
Is a contour bra good for big breasts?
To about a DD it is fine; above that it is a compromise. The foam is heavy and hot at large cups, few brands cut molds above a G, and a smooth seamed cup gives the same line under clothes with better support. Spacer fabric is the lighter contour option for DDD to G.
How should a contour bra fit?
The top edge flat on the breast with no gap or bulge, the nipple at the deepest point of the mold, the wire on the ribcage all round, no air pocket under the cup, and a band snug enough to hold on the loosest hook. If the edge is flat only when you stand still, the cut is wrong for your shape.
Contour Bras vs other styles
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