Bra Size Guides

HH Cup Bras by Band Size (UK) – Find the Best Bras for Your Exact Band Size

This HH cup bras by band size guide helps you find the best bras for your exact band size, with links to detailed pages covering fit, support and recommended styles for every HH band size.

An HH cup sits within the UK bra sizing system between H and J. However a 28HH, 34HH and 40HH represent different cup volumes because cup size always changes with band measurement.

If you want to understand the size itself before choosing a band, see our HH Cup Bras Guide or explore real-world measurements in our How Big Are HH Cups explanation.

If you are unsure of your starting size, begin with the Bra Size Calculator. You can then confirm your fit using our Bra Fitting Advice and compare sizing across brands using the Bra Size Converter.

What Is an HH Bra Size?

An HH bra size is part of the UK bra sizing system and appears between H and J in the cup progression. Each step typically represents about a 1 inch increase between the band size and the fullest bust measurement.

In most UK size charts an HH cup corresponds to roughly a 12 inch difference between the band measurement and the fullest part of the bust. Because cup volume increases with band size, a 30HH, 34HH and 40HH all represent different volumes.

Understanding HH Cup Size

In the UK bra sizing system, each cup size step represents roughly a one-inch increase between the band size and the fullest bust measurement. An HH cup sits between H and J in this progression.

If you want to compare neighbouring sizes, you can explore our guides to H cup bras by band size and J cup bras by band size.

You may also find these related guides helpful:

Because cup size works together with band size, you can also use bra sister sizes to find equivalent sizes when adjusting the band while keeping a similar cup volume.

HH cup sizes are available across a wide range of band sizes. For example, you can explore detailed guides for 32HH bras, 34HH bras and 36HH bras.

Popular HH Bra Sizes

Some HH sizes appear frequently in UK fuller-bust brands and sit near the centre of the band range.

HH Cup Bras by Band Size

Why Band-Specific HH Guides Matter

Cup volume increases as band size increases. This means a 40HH holds significantly more volume than a 30HH, even though the cup letter is identical.

Smaller HH bands often rely on firmer band tension and narrower wire structures, while larger HH bands benefit from wider wings, reinforced frames and stronger fabric support. Reading guidance written specifically for your band size can significantly improve fit accuracy.

For example, a 32HH bra combines an HH cup with a smaller band measurement. A 34HH bra sits near the centre of the HH band range and is widely produced by fuller-bust brands, while a 36HH bra holds slightly more overall cup volume.

This HH cup bras by band size guide brings together all available sizes from 28 to 48, helping you compare HH cup bras by band size and choose styles suited to your measurements and support needs.

HH Cup Bra Size FAQs

What is an HH bra size?

An HH bra size sits between H and J in the UK sizing system and represents roughly a 12 inch difference between band and bust. You can also see real-world examples in our guide explaining how big HH cups are.

Is HH bigger than H?

Yes. HH comes directly after H in the UK cup sequence.

What cup size comes after HH?

The cup size after HH in the UK bra sizing system is J.

Does the same HH cup have the same volume on every band?

No. A 30HH holds less volume than a 38HH even though the cup letter is the same.

For a broader explanation of how bra sizing systems developed, you may also find this bra size overview helpful alongside the guides on this site.

Browse your specific band size above to find structured, supportive HH cup bras chosen for everyday stability and comfort.