Size Guide
28B Bra Size
Everything you need to know about bra size 28B — measurements, sister sizes, international equivalents, and fit advice.
Measurements for 28B
Underbust (Band)
27 to 29 inches (69 to 74 cm)
Full Bust
approximately 31 inches (79 cm)
28B in Other Sizing Systems
US
28B
UK
28B
EU
60B
FR
75B
AU
6B
Sister Sizes for 28B
These sizes have the same cup volume as 28B. Try them if the band feels too tight or too loose.
28B ↔ 30A
← Tighter band, bigger cup · Looser band, smaller cup →
Fit Tips for 28B
B cups are among the most widely available sizes. If gapping occurs, try a demi-cup or push-up style.
If your 28B bra is gapping at the top of the cup, the cup may be too large or the wrong shape — try a demi-cup or balconette. If the center gore doesn't sit flat, go up one cup size.
Not sure about your size? Measure yourself and double-check.
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