Fit Passport

One body · one fit identity · any store

Know what fits,
anywhere.

Check your size on any product page. We weigh it against the clothes you already own — and show our working.

Add Fit Passport to Chrome

Free · from the Chrome Web Store · reads only the page you click it on

Or paste a product linkBeta

Works on some stores. Many large ones block our servers from reading their pages — the extension reads the page in your own browser instead.

The idea

Your fit,
carried between stores.

Sizes never agree across brands. Fit Passport holds one portable profile and translates it anywhere you shop — no retailer integration, no guessing.

Build your passport
01

Open a product page

Click Fit Passport on any store's product page. It reads the brand, the garment and the size chart from the page you're looking at.

02

We weigh it against you

Your measurements, your preferred fit, and the clothes you already own and love — all considered.

03

A size, and the reason

Not a guess. Every recommendation shows its work, so you can trust it — or overrule it.

What you get

A wardrobe that travels.

UniqloM
COSEU 48

Your closet, learned

Clothes you love become anchors — we learn how each brand runs on you.

Compose the look

Build outfits on a mannequin shaped like you, then share them.

Earn your taste

Struck-metal badges for a curated closet and admired looks.

Three signals, one answer

Everything you know
about your fit.

Measurements

Your body, once — kept private.

Known-good items

The clothes that already fit you.

Brand behaviour

How each label runs on you.

Three signals converge into a single recommendation — with its reasoning attached.

FIT

Consumer-owned

You keep the profile.
It works at every store.

Fit was never a picture problem. It’s a memory problem — and the memory is already hanging in your closet.

More than a size calculator

A community that
dresses better together.

Sizing is the tool. The reason people stay is each other — seeing what fits real bodies, sharing taste, and getting better at buying clothes.

Fit intelligence from real bodies

See which brands and sizes actually worked for people built like you — not a model in a studio.

Browse the directory

Share your taste, build a reputation

Post outfits from your own closet and earn struck-metal badges as your archive grows.

Compose a look

Learn what to buy next

Every look shows its pieces and sizes — so one you like is one you can actually find and fit.

See the badge ladder

Everything social is opt-in: you choose to be listed, and precise measurements are never shared — only coarse, useful signals.

Start your
fit passport.