Question 1

How do I measure correctly for a bra?

Accepted Answer

For the band, wrap the tape snugly and level around your ribcage directly under the bust. For the bust, measure loosely across the fullest point. The difference between the two gives the cup: 2–3 cm = A, 4–5 cm = B, 6–7 cm = C, 8–9 cm = D, and so on.

Question 2

Why does a "correct" size still not fit well?

Accepted Answer

Size is only a starting point. Cup shape (full, demi, plunge), strap and back width, and underwire type all matter. Try 3–4 styles in your size. Surveys suggest many women wear the wrong size — usually too large a band and too small a cup.

Question 3

How do international band and cup systems differ?

Accepted Answer

The cm-based band (75, 80, 85) is common in Europe and Russia. UK/US use inch-based bands (34, 36, 38). The French system is offset by 15 (FR 90 = 75). Cup letters mostly align, though some systems skip or add AA and split DD/E differently.

Question 4

What are "sister sizes"?

Accepted Answer

Sizes with the same cup volume but a different band: 75C, 80B, and 85A all hold roughly the same bust. If 80B is too tight in the cup, try 75C; if the band is too loose, try 85A. Useful when your measurements fall between standard sizes.

Question 5

How often should I re-measure?

Accepted Answer

After any weight change of about 5 kg, after pregnancy or breastfeeding, and roughly once a year even at a stable weight, since body shape shifts over time. Many people wear a size they were fitted for years ago that no longer fits.

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