The Best Bras for 42B
Computed from published size charts, not sponsorships: 28 of the 49 brands we chart cut a 42B. That is real choice with real differences, so the table below separates brands that carry it deep in their range from those where it is a chart-edge size, each in the brand's own notation.
42B in every system
Cup letters diverge above D, so the letter changes even though the bra does not. Convert by position, and match the printed tag in the table below.
Strong first tries at 42B
These are chosen by rule, not payment: your size sits inside each chart, away from its edges. The complete computed list follows.
The complete list: who makes 42B
| Brand | System | Their label for it | Range position | Interactive chart |
|---|---|---|---|---|
| Amoena | EU | 95B | well in range | chart → |
| Anita | EU | 95B | well in range | chart → |
| Bendon | AU | 20B | well in range | chart → |
| Berlei | AU | 20B | well in range | chart → |
| Chantelle | FR | 110B | well in range | chart → |
| Cuup | US | 42B | well in range | chart → |
| Harper Wilde | US | 42B | well in range | chart → |
| Knix | US | 42B | well in range | chart → |
| Le Mystère | US | 42B | well in range | chart → |
| M&S | UK | 42B | well in range | chart → |
| Savage X Fenty | US | 42B | well in range | chart → |
| Skims | US | 42B | well in range | chart → |
| Soma | US | 42B | well in range | chart → |
| ThirdLove | US | 42B | well in range | chart → |
| Triumph | EU | 95B | well in range | chart → |
| Victoria’s Secret | US | 42B | well in range | chart → |
| Wacoal | US | 42B | well in range | chart → |
| Aerie | US | 42B | at chart edge | chart → |
| Bali | US | 42B | at chart edge | chart → |
| Bras N Things | AU | 20B | at chart edge | chart → |
| Cacique | US | 42B | at chart edge | chart → |
| Hunkemöller | EU | 95B | at chart edge | chart → |
| Maidenform | US | 42B | at chart edge | chart → |
| Marie Jo | EU | 95B | at chart edge | chart → |
| Playtex 18 Hour | US | 42B | at chart edge | chart → |
| Pour Moi | UK | 42B | at chart edge | chart → |
| PrimaDonna | EU | 95B | at chart edge | chart → |
| Warner’s | US | 42B | at chart edge | chart → |
Of the 28: 17 carry 42B well inside their chart, 11 at its edge. Well in range means the size sits inside the brand's chart, cut from a block graded around it. At chart edge means it is the first or last size they make, which is real but drafted at the limit of their grading. Your measured size guide: the universal 42B page.
Is 42B actually your size?
Same published math as the calculator: snug measure, no added inches.
How to choose at 42B
42B pairs a larger band with modest cup depth, a proportion the industry underserves in the opposite direction from full-bust sizes: bands go up but the assumed cup depth climbs with them, leaving shallow-cup wearers with cups that wrinkle at the top.
Look for stretch-top cups, lightly lined or unlined styles, and wireless constructions with structured bands. At this proportion the band delivers the support and the cup mostly needs to follow the profile without excess fabric.
Brands whose plus-band ranges start rather than end at your band tend to grade the shallow letters more honestly there.
Watch for: Wrinkling at the top of the cup here usually means the profile, not the letter. Try a stretch-edge cup before sizing the letter down and losing base volume.
Constructions that work for a fuller band with a proportionally shallow cup
Each guide explains the construction, who it flatters and its honest trade-offs.
Sister sizes for 42B
A sister size keeps identical cup volume on a different band. If the 42B band rides up or digs in while the cup fits, the sister is the fix.
42B bras, answered
Which brands make a 42B bra?
Of the 49 brands whose published size charts we track, 28 cut a 42B. The strongest first tries: Skims, ThirdLove, Triumph, Amoena. The full table on this page lists every one in the brand's own notation, converted by chart position.
What is 42B in other sizing systems?
US: 42B. UK: 42B. EU / DE: 95B. FR / ES: 110B. AU / NZ: 20B. IT: 7ªB. JP: C95. Letters diverge above D, so always convert by position, not by letter.
What styles work best for 42B?
For a fuller band with a proportionally shallow cup: Wireless with structure, Unlined, T-shirt, Front-close, Longline bralette. Wrinkling at the top of the cup here usually means the profile, not the letter. Try a stretch-edge cup before sizing the letter down and losing base volume.
Multi-brand retailers with deep size ranges
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HauteFlair labels cups in UK letters, so these links already convert your size by position (a US DDD lands on a UK E, a US G on a UK F). 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.
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