H cup is a fuller size, generally found in specialty and plus-bust ranges rather than every mainstream rack — full-support and full-coverage styles are usually the most reliable starting point.
Common H cup sizes
| Size | Sister size (band up) | Sister size (band down) |
|---|---|---|
| 30H | 32G | 28HH |
| 32H | 34G | 30HH |
| 34H | 36G | 32HH |
| 36H | 38G | 34HH |
| 38H | 40G | 36HH |
| 40H | 42G | 38HH |
Sister sizing
A 34H shares roughly the same cup volume as a 32HH and a 36G. Use the sister size calculator to find your full chain.
Fit tips
Look at specialty ranges
Brands with dedicated full-bust ranges tend to have more reliable fit and construction at this size.
Wider straps help
Wider-set straps and firmer wires distribute weight more evenly at fuller cup sizes.
Questions
H cup FAQs
It's less common on general racks, but widely available through brands and retailers that specialize in fuller bust ranges.
Often yes — wider straps, sturdier bands, and full-coverage cups tend to hold up better than lighter, less structured styles.
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