Fit Test
Find your true size.
Then never guess again.
Answer six quick questions about what you wear now and what’s going wrong. We’ll estimate your real band and cup — and point you to bras built to actually fit.
Start the Fit TestIt was never you. It was the bra.
Six taps and about a minute. No account, no measuring-tape anxiety — and you can skip the tape entirely if you already know roughly what you wear.
Begin →Do you know your bra size?
However you answer is fine — we’ll get you to the right place.
What are you wearing now?
The size on the label of the bra you reach for most.
Grab a soft tape.
What do you normally wear?
We’ll turn this into a band-and-cup starting point — then strongly suggest a 2-minute measure for accuracy.
By mid-morning, your band usually…
The band should sit firm and level around your ribcage — most of your support lives here.
Your straps usually…
In the cup, you get…
What matters most to you?
This shapes which styles we put in front of you.
Are you nursing or expecting?
We’ll prioritise easy-access, breathable styles if so.
Built to fit you
Save your result & take 10% off
Enter your email and we’ll send your Full-Figure Fit Guide plus a 10%-off code for your first order — and keep your size on file for easy reorders.
You’re in.
Your Fit Guide and 10%-off code are on their way to your inbox. Welcome to Soffion.
Between sizes? That’s normal.
Every result comes with sister sizes, and our styles note “runs small / true / large” so you’re never guessing at checkout.
Easy size exchanges
Not quite right? Swap sizes in a few clicks — no label fee, no restocking fee. We’d rather you keep the fit than the frustration.
Real support, no wire
A firm band and wide straps do the lifting — genuine support for a full bust, without metal digging in by noon.
A few honest answers
How accurate is the Fit Test?
It’s built on the same band-and-cup method professional fitters and the big online fit communities use — not an “XL” guess. If you measure, it’s genuinely close. If you estimate from S/M/L, treat it as a strong starting point and confirm with a 2-minute measure on our Find My Fit guide.
Why is my result different from my usual size?
Most people have been wearing too big a band and too small a cup for years — it’s the single most common fit mistake. A smaller band with a bigger cup (your “sister size”) often feels dramatically better while holding the same volume.
What if I’m still not sure?
Order your estimated size, and if it’s not perfect, exchange it — no label fee, no restocking fee. You can also reply to any Soffion email and a real person who understands full-bust fit will help.
Do you share my email?
Never. We use it to send your Fit Guide, your discount, and genuinely useful fit help. Unsubscribe anytime.