H Cup Bras (UK Sizing) – Brands That Make H Cups & How to Find Your Size
Finding well-fitting bras in a UK H cup can be difficult, especially on the high street where many brands stop several cup sizes earlier. This guide focuses specifically on H cup bras, explaining which brands make them, how cup sizing differs between brands, and how to confirm your correct size before buying.
In the UK sizing system, H follows GG in the extended cup sequence used by many fuller-bust brands. In US sizing systems, cup progressions differ, so the same letter does not always represent the same cup volume. Always compare measurements and sizing charts rather than relying on the cup letter alone.
To find your starting size, begin with our Bra Size Calculator, then explore the specialist brands listed below.
Want to browse H cup bras by band size? Visit our H Cup Bras by Band Size page to jump straight to sizes like 32H, 34H, 36H and more.
Who This Guide Is For
- Women who wear a UK H cup
- Those struggling to find supportive everyday bras
- Customers sized out of mainstream brands
- Shoppers comparing fuller-bust specialist brands
- Anyone repeatedly sister-sized due to limited availability
Why Not All H Cup Bras Are the Same
The H cup is part of the extended UK bra size sequence used by many fuller-bust lingerie brands. While H is a recognised UK bra size, some brands use different cup lettering systems, which can make size comparisons confusing.
In extended UK sizing, H sits between GG and HH. Some traditional cup sequences move directly from H to J instead, which is why checking the brand's sizing system is important when comparing bra sizes.
The H cup is closely associated with the double-letter sizes used in UK bra sizing. Double cups such as FF, GG and HH are additional cup size steps rather than half sizes. For a full explanation, see our Double Cup Bra Size Guide .
If you are comparing neighbouring cup sizes, see our guide explaining G vs GG vs H cup size differences .
How Big Is an H Cup?
A UK H cup bra sits within the fuller-bust range of the UK cup size sequence. However, how large an H cup appears depends on factors such as band size, body proportions and bra design.
For example, a 30H and a 40H do not have the same cup volume. Cup volume increases as band size increases, which is why the cup letter alone does not tell the full story.
If you would like to see visual examples across different band sizes, visit our How Big Are H Cups? guide.
H Cup Size Progression
An H cup sits between GG and HH in the extended UK cup size sequence used by many fuller-bust brands. The diagrams below show how cup volume increases gradually while the band size remains the same.
H sits between GG and HH in the UK bra size sequence.
These simplified educational diagrams show how cup volume increases across nearby UK cup sizes when the band size stays the same.
Cup volume increases gradually across the UK sizing system. A 34HH has more cup volume than a 34H, while a 34GG has slightly less.
How cup sizes actually work: Bra cup sizes are based on a simple fitting rule — each step in the cup sequence represents a 1 inch difference between the bust and underbust measurement. This rule applies across all UK brands, regardless of whether they use a traditional or extended cup letter sequence.
In brands that use an extended UK cup sequence, H is a separate cup size positioned between GG and HH. Each step represents the same one-inch increase in measurement difference, making H one cup size larger than GG and one cup size smaller than HH.
The difference between brands is the lettering used, not the size step itself. For example, some traditional UK cup sequences move directly from H to J, while extended UK sizing includes HH as an additional cup size between them.
UK vs US Bra Sizes
Bra sizing systems vary slightly between regions. Most specialist fuller-bust brands such as Panache, Freya, Fantasie and Elomi follow the UK cup size sequence, which includes double letters such as FF, GG and HH.
Some US brands use a slightly different lettering system, which can create confusion when comparing sizes internationally. To understand how the sizing systems relate, see our UK vs US bra size comparison guide .
Is a UK H Cup the Same as a US H Bra Size?
It depends on the brand. Many UK-based fuller-bust brands such as Panache, Freya and Elomi use the same extended UK cup sequence internationally, meaning an H cup is labelled the same in both the UK and US.
However, some US lingerie brands follow a different cup progression. For this reason, always check the brand’s stated sizing system rather than relying on the cup letter alone.
A cup size is not one fixed volume. Cup volume increases as the band size increases, so a 30H, 36H and 44H are all very different in fit and capacity, even though the cup letter is the same.
When comparing bras, brands or sizes, always consider both band size and cup size together.
UK Brands That Make H Cup Bras
- Bravissimo – Bands 28–40, cups D–L View size guide
- Freya – Bands 28–42, cups B–K View size guide
- Panache – Bands 28–46, cups B–K View size guide
- Elomi – Bands 32–48, cups B–K View size guide
- Sculptresse – Bands 34–46, cups D–K View size guide
H Cup Band Sizes by Brand
- Bravissimo: 28H, 30H, 32H, 34H, 36H, 38H, 40H
- Freya: 28H, 30H, 32H, 34H, 36H, 38H
- Panache: 28H, 30H, 32H, 34H, 36H, 38H, 40H, 42H, 44H, 46H
- Elomi: 32H, 34H, 36H, 38H, 40H, 42H, 44H, 46H
- Sculptresse: 34H, 36H, 38H, 40H, 42H, 44H, 46H
H Cup Volume Changes With Band Size
Many people assume that all H cups are the same size. In reality, cup volume increases as band size increases. A 38H holds more volume than a 34H, while a 30H holds less.
The cup letter stays the same, but overall cup volume increases as the band size increases.
These simplified educational diagrams show how cup volume changes as the band size increases, even when the cup letter remains H.
A bra size consists of both the band size and cup size. A 38H holds more cup volume than a 34H, while a 30H holds less, despite all three using the same cup letter.
Popular H Cup Bras (UK Sizing)
Below are selected H cup bras in UK sizing from fuller-bust specialist brands. These examples show styles commonly available in H cup sizes across a range of band sizes. If you are still confirming your size, see the fitting advice and sizing information further down this guide before purchasing.
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How to Find Your Correct H Cup Size
Accurate measurements are essential at H cup level. Measure your underband and bust carefully, then enter your details into our Bra Size Calculator.
For step-by-step measuring guidance and fit checks, visit our Bra Fitting Advice.
Common Fit Issues for H Cup Bras
- Spillage or cutting in at the neckline
- Underwires sitting on breast tissue
- Straps taking too much weight
- Bands riding up or stretching too quickly
- Bras losing support during the day
Specialist fuller-bust brands address these issues using firmer bands, deeper cups and reinforced construction.
Can I Sister Size Instead of Wearing an H Cup?
Sister sizing may work temporarily but is rarely ideal for H cup wearers. Moving up a band and down a cup often reduces support and changes cup shape. If you are consistently sister sizing, it usually means the brand or cup structure is not right for you.
Use our Bra Size Converter to compare UK brand sizing accurately.
H Cup Sister Size Example
When sister sizing, the band size changes while the cup volume stays similar. A common H cup example is:
These sizes have a similar cup volume, but different band lengths.
Sister Size Comparison
These diagrams provide a simplified visual example of sister sizing. While the band size changes, the overall cup volume remains broadly similar.
Sister sizes can help when your usual size is unavailable. As the band size increases, the cup letter decreases to maintain a similar cup volume.
For a full explanation of how sister sizing works, see our Bra Sister Sizes Guide .
Use our Bra Size Converter to compare UK brand sizing and sister sizes accurately.
Explore More H Cup Guides
If you want to compare H cup sizes in more detail, these related guides can help you understand cup volume, band size, sister sizing and neighbouring cup sizes.
- H Cup Bras by Band Size
- How Big Are H Cups?
- G vs GG vs H Cup Size Comparison
- H vs HH vs J Cup Size Comparison
- Bra Sister Sizes Guide
H Cup Bra FAQs
Do all brands use the same H cup sizing?
No. While H cup is a recognised UK size, brands use different cup letter sequences.
Traditional brands use a shorter progression, while fuller-bust brands use extended sequences with FF, GG and HH cups.
As a result, H cups can vary significantly in volume.
Is a UK H cup the same as a US H cup?
No. US sizing uses a different cup structure.
A US H cup is smaller in volume than a UK H cup from extended UK sizing brands.
Always use conversion charts rather than relying on the letter alone.
Does band size affect H cup volume?
Yes. Cup volume increases with band size.
A 38H holds more volume than a 32H, even though the cup letter is the same.
Can H cup bras be supportive without wires?
Some non-wired styles exist, but most H cup wearers achieve the best lift and long-term support from underwired bras.
Related Cup Size Guides
For general background on bra sizing systems and cup progression, see the bra size reference on Wikipedia .