SKIMS Bra Size Chart & Converter
SKIMS sells bras in two different sizing systems: stretchy bralettes in alpha sizes (XXS to 4X) and structured bras in standard band-and-cup sizes. Most “what size am I in SKIMS?” mistakes come from mixing the two. This guide keeps them separate, gives you a free two-way converter, and shows you how to confirm the fit before you order.
SKIMS bralettes use alpha sizes (XXS to 4X), while structured bras such as the Fits Everybody T-Shirt Bra use standard US band-and-cup sizes. A 34C starts at about size S in a bralette but stays 34C in a molded or underwire style. Convert only for alpha bralettes, keep your real band and cup for structured bras, and always confirm on the product’s own size guide.
Key takeaways
- Bralettes (XXS–4X): use the alpha matrix below. One alpha size covers several band-and-cup sizes.
- Structured bras: shop your actual band and cup, for example 34C, not S, M or L.
- SKIMS says its sizing is consistent with standard US sizing, and that some bras can fit more than one band-and-cup combination because of stretch and cup technology.
- Size up only for a reason: band compression, cup spill or digging straps. Never just because you are “between” sizes.
- The alpha matrix on this page is an estimate, not SKIMS’ official chart. Treat it as a starting point and verify on the product page.
SKIMS size converter (both directions)
The 3-check SKIMS sizing method
Instead of memorizing a chart, run every SKIMS purchase through the same three checks. It takes about two minutes and prevents the most common sizing returns.
Identify the system
Look at the size selector on the product page. If you see XXS to 4X, it is alpha. If you see numbers and letters like 32B or 36DD, it is band-and-cup.
Start from the right number
Alpha: use the matrix below. Band-and-cup: use your measured size or your current best-fitting bra. Do not convert a band-and-cup bra into S, M or L.
Test the fit, then adjust
Check the band, cups, wires and straps (see the fit checklist). Fix a loose or tight band with a sister size and a wrong cup volume with a cup change.
Which SKIMS sizing system does your bra use?
SKIMS does not use one system across every bra. This table shows the usual pattern, but the size selector on the product page is the final word, because styles and size runs change.
| SKIMS bra type | Typical sizing | Use this guide’s… | Best for |
|---|---|---|---|
| Fits Everybody Scoop Bralette | Alpha, XXS–4X | Alpha matrix | Light support, pullover comfort |
| Nursing / maternity bralettes | Alpha (check product) | Alpha matrix, then size by comfort and band stretch | Changing size, pumping and nursing |
| Fits Everybody T-Shirt Bra | Band-and-cup, multi-fit stretch | Your band-and-cup size | Smooth everyday shape, wire support |
| Fits Everybody Push-Up Bra | Band-and-cup, multi-fit stretch | Your band-and-cup size | Lift with a soft feel |
| SKIMS Ultimate Teardrop Push-Up | Band-and-cup (check product) | Your band-and-cup size | Pronounced lift and plunge shape |
SKIMS bralette size chart (estimated alpha matrix)
The first mistake shoppers make is assuming one alpha size equals one fixed bra size. It does not. As cup volume increases, the alpha size can change even when the band stays the same, which is why a 34B and a 34G should not automatically be treated as the same bralette size. Find your US band in the left column and your cup across the top.
| US band | A | B | C | D | DD | F | G | H |
|---|---|---|---|---|---|---|---|---|
| 30 | XXS | XXS | XXS | XS | — | — | — | — |
| 32 | XS | XS | XS | S | M | M | M | L |
| 34 | S | S | S | M | M | M | L | L |
| 36 | M | M | M | L | L | L | XL | XL |
| 38 | L | L | L | XL | XL | XL | XL | XL |
| 40 | — | XL | XL | 2X | 2X | 2X | 2X | 2X |
| 42 | 2X | 2X | 2X | 3X | 3X | 3X | 3X | 3X |
| 44 | 3X | 3X | 3X | 4X | 4X | 4X | 4X | 4X |
| 46 | — | — | — | 5X | 5X | 5X | — | — |
Examples that make the chart easier to understand
34C → S in a bralette, 34C in a structured bra
A 34C sits in the S range in the alpha matrix. On a structured SKIMS bra sold by band and cup, you would normally begin with 34C rather than converting to S.
36D → L, not M
The extra cup volume moves 36D into L. A simple “36 band equals M” rule would be misleading, because M only fits 36A to 36C.
What bra size is a SKIMS S, M, L or XL?
There is no single bra size for an alpha size. This lookup shows the band-and-cup sizes each alpha size typically covers in our estimated matrix, which is the reverse of the converter above.
| SKIMS alpha size | Typical US band-and-cup sizes covered |
|---|---|
| XXS | 30A, 30B, 30C |
| XS | 30D, 32A, 32B, 32C |
| S | 32D, 34A, 34B, 34C |
| M | 32DD, 32F, 32G, 34D, 34DD, 34F, 36A, 36B, 36C |
| L | 32H, 34G, 34H, 36D, 36DD, 36F, 38A, 38B, 38C |
| XL | 36G, 36H, 38D, 38DD, 38F, 38G, 38H, 40B, 40C |
| 2X | 40D, 40DD, 40F, 40G, 40H, 42A, 42B, 42C |
| 3X | 42D, 42DD, 42F, 42G, 42H, 44A, 44B, 44C |
| 4X | 44D, 44DD, 44F, 44G, 44H |
| 5X | 46D, 46DD, 46F |
SKIMS band-and-cup sizing: what changes in structured bras?
When a SKIMS bra is offered as 32B, 34C, 36DD and similar sizes, treat it like a conventional bra rather than converting it into S, M or L. Cup depth, wire width and band tension matter far more in molded T-shirt bras, demi bras and push-up styles than in a very stretchy bralette.
Why SKIMS sizes feel more forgiving than regular bras
SKIMS describes its Fits Everybody bras as designed to accommodate a range of sizes, with some styles able to fit more than one band-and-cup combination thanks to high-stretch fabric and cup technology. In practice that means a 34B and a 34C may both feel acceptable in the same style, while a traditional rigid-cup bra would clearly fit only one. If you are on the borderline, choose based on cup containment first.
Jump sizes and the DD-to-F label
SKIMS defines a “jump size” as the next size up or down from your measured size, useful when you are borderline or a size sells out. Also note that SKIMS-style US labeling jumps from DD straight to F in the size guides we reviewed, so what some brands label DDD or E appears as F. When comparing with another brand’s chart, convert by cup volume, not by letter.
International band conversion
| US band | UK band | EU band | AU/NZ band |
|---|---|---|---|
| 30 | 30 | 65 | 8 |
| 32 | 32 | 70 | 10 |
| 34 | 34 | 75 | 12 |
| 36 | 36 | 80 | 14 |
| 38 | 38 | 85 | 16 |
| 40 | 40 | 90 | 18 |
| 42 | 42 | 95 | 20 |
| 44 | 44 | 100 | 22 |
| 46 | 46 | 105 | 24 |
US to UK/EU cup conversion (approximate)
| US cup | Approx. UK | Approx. EU |
|---|---|---|
| A | A | A |
| B | B | B |
| C | C | C |
| D | D | D |
| DD | DD | E |
| F (DDD) | E | F |
| G | F | G |
| H | FF | H |
How to measure for a SKIMS bra
- Wrap the tape under your bust. Measure snugly around your ribcage directly under the bust, with the tape level at the back. Exhale and note the number in inches.
- Round to your band size. Round to the nearest even number to estimate your US band, such as 30, 32, 34, 36 or 38.
- Measure the fullest part of the bust. Wrap the tape around the fullest part of your bust without compressing tissue and keep it level across the back.
- Work out the difference. Subtract the band measurement from the full-bust measurement. About 1 inch is A, 2 inches is B, 3 inches is C, 4 inches is D and so on.
- Pick the right SKIMS chart. Use the alpha matrix for XXS-4X bralettes and your band-and-cup size for structured SKIMS bras.
- Confirm on the product page. Check the exact product’s size guide and fit notes, then adjust with a sister size or jump size if needed.
Use a soft measuring tape and a thin, unpadded bra, or measure without a bra if that gives a more natural shape. For a stronger starting size, run both numbers through our bra size calculator or follow the full how to measure bra size guide. Because breasts can be projected, shallow, asymmetrical or fuller on top or bottom, two people with identical measurements can still prefer different cup shapes.
How should a SKIMS bra fit?
Signs the fit is working
- The band stays level instead of climbing up your back.
- The cup edge lies smoothly without cutting or gaping.
- In structured bras, the center gore and wires sit flat and stable.
- Straps help position the bra but are not doing all the lifting.
- You can breathe, move and sit without wanting to remove it.
Signs to try another size or style
- The back band rides noticeably higher than the front.
- Breast tissue escapes at the top, side or under the cup.
- The cup collapses or gaps even after adjusting the straps.
- The wire sits on breast tissue rather than around it.
- A bralette feels comfortable but gives less support than you need.
Quick fix guide: symptom to solution
| Symptom | Likely cause | Try this |
|---|---|---|
| Band rides up at the back | Band too loose | Go down a band and up a cup (sister size), or the next smaller alpha size in a bralette |
| Band digs or leaves deep marks | Band too tight | Go up a band and down a cup, or the next larger alpha size |
| Spilling over the top or sides | Cup too small | Go up one cup, or switch from a bralette to a structured style |
| Fabric gaps or wrinkles at the cup | Cup too big or wrong shape | Go down one cup, or try a fuller-on-top or stretch-fit style |
| Wire sits on breast tissue | Cup too small or wire too narrow | Increase the cup size first |
| Straps dig into shoulders | Band is not doing the work | Fix the band first, then loosen the straps |
SKIMS bralette vs structured bra: which should you choose?
Choose a bralette if…
You want softness, stretch, light support and less rigid sizing. Bralettes forgive small size fluctuations, but that flexibility also means less precise lift and separation.
Choose band & cup if…
You want stronger shaping, defined cup containment, better separation or a more predictable fit for a fuller bust. Structured sizing is usually the better route when support matters more than a lounge-like feel.
Choose by shape if…
Your main issue is cup shape, not size. A deep or projected bust can fit poorly in a shallow molded cup even when the label size is technically correct.
Breast shape and SKIMS styles
| Shape | Common issue | What to try first |
|---|---|---|
| Shallow / wide-set | Cups gap at the top | Stretch bralette or unlined stretch cups that mold to the shape |
| Projected / narrow-set | Cup pushes forward, wires sit on tissue | Go up a cup in a structured style, prefer deeper cups over shallow molded ones |
| Full on top | Spill at the upper cup edge | Fuller coverage or a scoop shape, not a plunge |
| Full on bottom | Band lifts and bottoms spill under the wire | Confirm the band first, then try a plunge or balconette cut |
| Asymmetrical | One cup fits, the other gaps | Size to the larger breast and choose stretch or removable-pad styles |
Between sizes, fuller bust and other real-life situations
What if you are between SKIMS sizes?
Do not automatically size up. First decide what you want from the bra. For a lounge-style bralette where you prefer a softer, less compressed feel, the larger alpha size may be better. If you want a closer hold and the smaller size causes no spillage or band pressure, the smaller option can work. SKIMS itself advises considering the product’s fabric and your preferred fit, and sizing up in more compressive items.
For band-and-cup bras, be more precise. If the band is the problem but the cup volume is right, use a sister size. If the cup cuts in while the band is stable, change the cup before the band.
Fuller bust (D cup and above)
Alpha bralettes group several cup sizes together, so a fuller bust often sits at the edge of a size and loses lift and separation. If you wear D or above and want support, begin with a structured band-and-cup style, then confirm cup range, wire width and coverage on the product page.
Small band, large cup
A 30DD or 32G falls into a narrow slice of the matrix. The alpha size you land on may be right for the cup but too loose in the band. In that case choose the band-and-cup version of the style and use a sister size to adjust band tension.
Size fluctuation, pregnancy and nursing
Stretch bralettes and nursing bralettes are designed around changing size, so alpha sizing and comfort-first selection make sense there. Choose the size that stays comfortable across the day and does not compress the breast tissue.
Worked examples
| Your US size | Bralette start (alpha) | Structured bra start | Watch for |
|---|---|---|---|
| 32B | XS (test S if borderline) | 32B | Band riding up in the larger alpha size |
| 34C | S | 34C | Cup spill in S for projected shapes |
| 36D | L | 36D | Band feeling loose in L, consider a sister size |
| 38DD | XL | 38DD | Lift: prefer structured for support |
| 32G | M | 32G | Alpha band too loose, choose band-and-cup |
| 40C | XL | 40C | Check availability of the size run on the product |
Supportive alternatives on Amazon
If a reader likes the smooth SKIMS look but wants a different fit profile or wider availability, these alternatives make a useful comparison. Check the size chart on each listing, because brands label cups differently. Amazon links carry the Bra-Calculator.com Associates tag.
Bali Comfort Revolution Wireless Bra DF3488
A soft wire-free option with more traditional coverage than a minimalist bralette. It suits readers whose priority is everyday comfort with a little more hold.
Why compare it: more conventional coverage while staying wire-free.
Check Amazon
Playtex 18 Hour Ultimate Lift & Support
A fuller-coverage wire-free bra for shoppers who want more containment and a firmer, supportive feel than a fashion bralette typically provides.
Why compare it: a support-first option for everyday wear.
Check Amazon
True & Co True Body Lift Triangle
A smoother wireless alternative for readers drawn to a seamless, minimal look rather than structured lift.
Why compare it: similar comfort-led shopping intent with a different fit system.
Check AmazonAffiliate disclosure: As an Amazon Associate, Bra-Calculator.com may earn from qualifying purchases. This does not change the price you pay.
SKIMS sister sizes: when they help and when they do not
Sister sizing keeps a similar cup volume while changing the band. A 34C has sister sizes 32D (tighter band) and 36B (looser band). If the 34 band feels loose but the cup volume is right, try 32D. If the 34 band feels too firm, try 36B.
Sister sizes are not identical bras. Changing bands shifts strap placement, wire width and cup spacing, so treat sister sizing as an adjustment, not a guarantee. Use the sister size calculator for a quick alternative, then judge the fit on your body.
| Your size | Tighter-band sister | Looser-band sister | When to consider it |
|---|---|---|---|
| 32D | 30DD | 34C | The 32 band feels wrong but cup volume is close |
| 34C | 32D | 36B | A common sister-size example |
| 34D | 32DD | 36C | Useful when adjusting band tension |
| 36D | 34DD | 38C | Check wire width after moving bands |
| 36DD | 34F | 38D | Uses SKIMS-style labeling, where F follows DD |
| 38C | 36D | 40B | The 38 band is the main fit issue |
Common SKIMS sizing mistakes to avoid
1. Converting every bra to S/M/L
Structured SKIMS bras are already sold in band-and-cup sizes. Converting them throws away useful fit information.
2. Assuming stretch fixes cup volume
Stretch improves comfort, but it cannot always provide containment or lift for a fuller bust.
3. Using only your clothing size
A clothing medium does not tell you enough about band circumference and breast volume to pick a bra reliably.
4. Ignoring shape
Shallow molded cups and projected breasts can be incompatible even if the label size looks correct.
5. Trusting one chart for every style
Brand-level charts show the system. Individual styles can have different size runs and fit notes, so check the exact product.
6. Skipping the band check
Most support comes from the band. If the band rides up, changing the cup rarely solves it.
Related bra size guides
SKIMS bra size FAQs
What SKIMS size is a 34C?
In the estimated bralette matrix on this page, a 34C starts at SKIMS S. For a structured SKIMS bra sold in band-and-cup sizes, start with 34C instead of converting it to alpha sizing.
What SKIMS size is a 36D?
In the estimated bralette matrix, a 36D starts at L. For a molded or underwire SKIMS style listed in band-and-cup sizes, try 36D first. The extra cup volume is why 36D lands a size above 36B or 36C.
What SKIMS size is a 32B?
A 32B maps to XS in this guide’s estimated matrix, but it sits near the XS/S boundary. A model on an official SKIMS scoop bralette page lists 34B wearing S, so if you prefer more coverage or a looser band, test S.
What bra size is a SKIMS small, medium or large?
No single bra size matches an alpha size. In this guide’s matrix, S covers 32D, 34A, 34B and 34C. M covers sizes such as 32DD, 34D, 36B and 36C, and L covers 36D, 36DD, 38B and similar sizes. See the reverse lookup table above.
Does SKIMS use band and cup sizes?
Yes. Many structured SKIMS bras, such as the Fits Everybody T-Shirt Bra, are listed in band-and-cup sizes, while stretchy bralettes use alpha sizes from XXS to 4X. SKIMS also says some bras can fit more than one band and cup combination.
Does SKIMS run true to size?
SKIMS states that its sizes are generally true to size, especially in stretchy collections like Fits Everybody, and consistent with standard US sizing. Fit still depends on product type, so check the size guide and fit notes on the exact product page.
What is a jump size at SKIMS?
SKIMS describes a jump size as the next size up or down from your measured size, useful when you are borderline or a size is sold out. Some very stretchy SKIMS styles are also cut to cover a range of sizes.
Should I size up or down in a SKIMS bralette?
Stay with your chart size first. Size up only if the band feels compressive, the cups spill or the straps dig. Size down only if the band rides up or the fabric wrinkles across the cup. Stretch fabric forgives band changes more than cup-volume changes.
Is SKIMS good for a bigger bust?
Choose a structured band-and-cup style rather than an alpha bralette when you wear D or above and want lift or separation. Check the available cup range, wire width and coverage on the product page, because not every SKIMS style is offered in every size.
Can I use sister sizes with SKIMS?
Yes, mainly with band-and-cup styles. Go down one band and up one cup for a tighter sister size, or up one band and down one cup for a looser one. A 34C becomes 32D or 36B. Alpha bralettes already group several sizes together, so sister sizing is less useful there.
Is this the official SKIMS size chart?
No. The alpha matrix here is Bra-Calculator.com’s estimated starting guide, cross-checked against SKIMS product-page model sizes. SKIMS publishes its own size guides, and the chart on the exact product page always takes priority before you buy.
What bra size is SKIMS XL?
In this guide’s matrix, XL covers sizes such as 36G, 36H, 38D, 38DD, 38F, 38G, 38H, 40B and 40C. It is a wide range, so use the band measurement first and then check how the cups contain your bust.
How do I measure for a SKIMS bra?
Measure snugly around your ribcage under the bust for the band, then around the fullest part of the bust without compressing. Use the underbust number to choose the band and the difference to estimate the cup. Then check the product’s own size guide.
How we built this guide
This guide combines measurement logic from Bra-Calculator.com with sizing information published by SKIMS. Brand facts, including SKIMS’ statements about true-to-size fit, US-consistent sizing, jump sizes and multi-fit bras, come from SKIMS’ own size guide and product pages. Model reference sizes, such as the 34B model wearing S on the Fits Everybody Scoop Bralette, come from SKIMS product listings. The alpha matrix and reverse lookup are our estimates built around those reference points. They are a planning tool, not an official SKIMS chart.
We are not affiliated with SKIMS. If SKIMS updates a size guide or a product’s size run, the product page is the source of truth.
Reviewed by Amelia
Amelia reviews Bra-Calculator.com sizing and fit guides for measurement logic, practical fit advice and reader clarity. The goal is to give you a useful starting point while being clear about where brand charts stop and real-world fit begins.
Last reviewed: 2026. Product availability, price and size range can change. Always confirm the current size guide on the exact product page before purchase.
