About
About The Bra Bible
The Bra Bible started with a frustration that turned out to be a measurement problem: finding a well-fitting bra should not be this hard. It is a one-writer site about the part of getting dressed that no one explains properly.

Our Story
The Bra Bible started with a frustration that turned out to be a measurement problem: finding a well-fitting bra shouldn’t be this hard. Like most women, I spent years in the wrong size. Guessing at measurements, buying bras that felt wrong the moment I put them on. Straps that dug in, bands that rode up, wires that poked. Nothing was defective — the bra was simply the wrong size, and I had no way of knowing. What changed was learning how sizing actually works. That band and cup are two separate measurements, that sister sizes exist, and that a 34E in one brand is not a 34E in another. Once the system made sense, the discomfort did too — and it became fixable. This site is where I write all of that down, so you don’t have to work it out the hard way.
Who Writes This Site
Mia Johnson is brabible.com’s bra-fit writer. Years spent in the wrong size taught her that most ‘uncomfortable’ is really ‘mis-sized’ — so she translates sizing systems, fit standards and real reader questions into plain, practical advice for every body and life stage.
Every guide on this site is written by me. There is no content team behind this page and no anonymous “we” — the advice comes from sizing systems, published fit standards and the questions readers send in, translated into plain language.
The site is not affiliated with any lingerie brand, and nothing here is written to a brand brief. Where a guide links to a product, the link is an affiliate link and it is labelled as one.
Where the Advice Comes From
I don’t have a laboratory, and I don’t claim to. What I work from is the material the industry and readers actually use:
- Published sizing systems and manufacturer size charts — including the differences between them, because those differences are where most fit problems begin
- Standard fit checks you can do at home: band tension, whether the centre gore sits flat, where the wire sits, and whether the cup edge cuts in
- The questions readers send in — which is where most of the topics here come from in the first place
Where something is a matter of judgement rather than measurement, I say so instead of dressing it up as fact. Sizes also differ between brands, so the charts here are a starting point rather than a final answer — the fitting and sizing guide explains how to use them.
What The Bra Bible Believes
Your body is not the problem. The bra is.
- Every body deserves a bra that fits
- Fit is a measurement question before it is a style question
- There is no “one size fits all” — a bra that’s perfect on one person is the wrong bra on the next
That last point is why the guides are organised by measurement, shape and life stage rather than by brand or trend.
What You Will Find Here
The guides cover the whole job, from working out your size to keeping a bra in shape:
- The complete bra fitting and sizing guide and the bra size calculator — the place to start
- Bras for every body shape and bust type — large busts, small chests, asymmetry, back smoothing
- Everyday and comfort bras, bras by fabric and function, and strapless, backless and invisible styles
- Bras for every outfit, bras through every life stage, and sports and active bras
- Care and problem-solving for washing, replacing and fixing the usual annoyances
Get in Touch
Have a question, or a topic you would like covered? Send it through the contact form — it reaches the inbox the guides are written from — or send a direct message on TikTok or Pinterest. Everything gets read, and the best questions end up as guides.