Official chart
Official Calvin Klein size chartCompleted brand guide
Calvin Klein Bra Size Guide
Calvin Klein uses both traditional band-and-cup sizing and alpha bralette sizing, depending on the bra line. Review data is mixed by style: several everyday bralettes are rated true to size, while some triangle and pullover bralettes have repeated size-up comments.
Use this guide as a practical checkpoint: measure first, match the official Calvin Klein chart, then check the exact product reviews before treating the size as final.
Sizing system
Calvin Klein's sizing system explained
Band-and-cup bras
Calvin Klein's official US bra chart maps a fullest-bust measurement against an underbust range, with listed sizes from 32A through 38DDD in the standard chart. The measurement guide says to measure snugly under the breasts for band size and loosely around the fullest part of the bust for cup size.
Bralettes and alpha sizing
Calvin Klein also publishes bralette sizing in XS, S, M, L, and XL, with each alpha size covering multiple bra sizes. The same guide separately lists invisible bralette and plus-size bra charts, so do not merge every Calvin Klein bra into one universal conversion.
Official chart values
Your US size in Calvin Klein
These rows reproduce the official Calvin Klein US bra chart structure: fullest bust measurement by underbust range. Blank cells mean the source chart did not list a size for that measurement combination.
| Fullest bust | Underbust 27" | Underbust 28"-29" | Underbust 30"-31" | Underbust 32"-34" |
|---|---|---|---|---|
| 33" | 32A | - | - | - |
| 34" | 32B | 34A | - | - |
| 35" | 32C | 34B | 36A | - |
| 36" | 32D | 34C | 36B | 38A |
| 37" | 32DD | 34D | 36C | 38B |
| 38" | 32DDD | 34DD | 36D | 38C |
| 39" | - | 34DDD | 36DD | 38D |
| 40" | - | - | 36DDD | 38DD |
| 41" | - | - | - | 38DDD |
Bralette conversion
Calvin Klein bralette size chart
For Calvin Klein bralettes, use the alpha-size chart instead of assuming your regular bra size maps to the same lettered size in every style.
| CK bralette size | Official listed bra sizes |
|---|---|
| XS | 32A, 30B |
| S | 34A, 32B, 30C |
| M | 36A, 34B, 32C, 36B, 34C |
| L | 38B, 36C, 34D |
| XL | 40C, 38D, 36DD |
Extended chart
Plus-size Calvin Klein bra notes
Calvin Klein's official plus-size bra chart uses 1X, 2X, and 3X across selected band and cup combinations rather than publishing every possible band-and-cup row.
Review notes
How Calvin Klein fits from real reviews
Macy's
The Form To Body lightly lined bralette is summarized as comfortable and generally true to size, with reviewers praising soft breathable fabric and adjustable straps.
Bloomingdale's
The Invisibles retro bralette has a 4.6-star review summary and is rated true to size on average, with comfort and softness showing up strongly.
Nordstrom Rack
The triangle cup bralette is rated small, and helpful reviews repeatedly tell shoppers to size up when the bralette cups or band feel tight.
The pattern is not one simple brand-wide rule. Macy's review summaries for some Calvin Klein bralettes rate cup fit as true to size, while the Modern Cotton bandeau summary notes inconsistent sizing and some recommendations to order up. Zappos reviews for an Invisibles bralette include many comfort comments, but also size-up and band-roll notes on later review pages. Nordstrom Rack's push-up underwire page labels fit true to size, yet its most helpful critical review says that specific bra felt too small.
Style notes
Style-by-style sizing notes
Icon Cotton and Modern Cotton bralettes
Expect soft cotton-modal stretch and light support. Calvin Klein's Icon Cotton Modal Lightly Lined Bralette lists true-to-size fit, lightly lined wireless cups, removable padding, and adjustable straps.
Invisibles bralettes
These are designed to be smooth under clothing with wirefree construction and removable pads. The official product page describes a seamless finish, flexible fit, bonded edges, and nylon-elastane fabric.
Push-up and plunge bras
Use your band-and-cup size first, not alpha sizing. Reviews on one CK push-up underwire style are mixed: the page reports true-to-size fit overall, but a critical review says the bra felt too small.
Bandeau and strapless-leaning styles
Check stay-put reviews carefully. Macy's bandeau summary says many shoppers liked the soft, flexible feel, but some reported small fit or slipping issues and recommended sizing up.
Independent context
What independent guides add
Good Housekeeping calls Calvin Klein's Modern Cotton Unlined Wireless Bralette a popular bralette, notes the cotton-modal-elastane blend, and says its testers found the scoop neckline lower than expected for shoppers wanting more coverage and support. Need for This describes the Modern Cotton bralette as light support, generally reliable in sizing, and slightly snug for shoppers between sizes or wanting a looser feel. Those independent notes line up with the practical takeaway: Calvin Klein bralettes are often loved for softness and everyday comfort, but shoppers who need lift, separation, or high support should be more careful with style choice.
Use your Wearavo size
How to convert your Wearavo size for Calvin Klein
First, get your Wearavo starting size from underbust and bust measurements. Then compare that US size with Calvin Klein's official chart for structured bras or the alpha bralette chart for soft bralettes. If your cup volume feels right but the band feels wrong, check sister sizes before jumping to a completely different label.
Sponsored shopping links
Shop Calvin Klein bras
Disclosure: Wearavo may earn a commission if you buy through sponsored links. Check the seller's current size chart and return terms before ordering.
FAQ
Do Calvin Klein bras run small?
Across the review sources checked, the safest answer is style-specific: several bralettes are rated true to size by retailers, while some triangle and pullover styles receive repeated size-up comments. Start with the official chart, then read reviews for the exact style.
What is my size in Calvin Klein?
For band-and-cup bras, use Calvin Klein's bra chart by matching your underbust column and fullest-bust row. For bralettes, use the alpha-size chart instead of guessing from dress size.
Do Calvin Klein bralettes fit differently?
Yes. Calvin Klein sells S/M/L-style bralettes separately from traditional band-and-cup bras, and those bralettes group multiple bra sizes into one alpha size. Reviews also suggest pullover bralettes can feel snugger than their soft fabric suggests.
What is Calvin Klein's return policy?
Return rules can change and can differ by country, sale type, and hygiene category. Check the current Calvin Klein product page and help center before ordering, especially for final-sale items.
Where can I find the official Calvin Klein size chart?
Use Calvin Klein's official women's size guide. The bras section includes the band-and-cup chart, the measurement method, bralette sizing, invisible bralette sizing, and plus-size bra sizing.
Is Calvin Klein better for bralettes or structured bras?
Calvin Klein is especially visible in bralettes and everyday wireless styles, but the brand also sells push-up, T-shirt, strapless, and full-coverage bra types. Choose based on the support level and shape you need, not only the logo or fabric.
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