FitCore sizes your customers the way a fitter would — girth, length and cut — on a live 3D avatar. Then shows them the garment on their own photo.
S/M/L was invented for t-shirts. You sell tailoring.
A 42 jacket comes in Short, Regular and Long. Generic size tools don't know that.
Wrong length = a return, even when the chest was right.
Height, weight, age, build. No tape measure.
A live 3D figure, morphing as they adjust — so they trust the number that comes back.
42R, collar 16.5", trouser 36R — and they can see it on their own photo with AI try-on.
Size-chart apps map a tape measure to a table. FitCore models the body, the garment and the cut — the logic a good fitter carries in their head.
Real tailoring sizes — 40R, 42L, 44XL — from a three-axis body model of girth, length and drop. Not another S/M/L chart.
X-Slim, Slim and Tailored cuts each size differently. FitCore applies per-cut offsets automatically — a fuller build sizes up in a closer cut.
Jacket chest, trouser waist and leg, shirt collar, casual alpha sizes — one engine covers every garment you sell.
Dresses, skirts, tops, women's tailoring and bra sizing — sized from bust, waist and hip, with UK/US/EU/FR/IT conversions. Built on published sizing standards, because a woman is rarely one size across all three.
Once the size comes back, shoppers upload one full-length photo and see the garment on themselves, captioned with their recommended size. A preview in their size — photos are processed once and never stored.
Upload measured size charts per brand and tune ease bands to how your garments really cut. Every recommendation is logged — your dashboard shows sizes served, confidence and escalations.
FitCore never touches your orders or customers.
Shoppers aren't tracked; try-on photos are processed once and never stored.
A build off-the-peg won't flatter gets invited to a fitting — not forced into a bad size.
FitCore was built inside a heritage menswear house — established 1946 — where “what size am I?” has always been answered with a tape measure, a practised eye and decades of fitting. FitCore is that judgement, productised: the questions a fitter asks, the offsets they apply, and the honesty to say when off-the-peg isn’t the answer.
Running the Style Guru AI stylist? Connect FitCore and the stylist quotes FitCore sizes mid-conversation, opens the 3D size finder inside the chat, and carries the result straight into outfit building — one fit brain across your whole storefront.
Meet Style GuruEvery plan starts with a 14-day free trial. Billing is handled securely through your Shopify account — no separate card, cancel any time.
$19 / month
$49 / month
$129 / month
Part of the StyleGuru family — Style Guru’s top tier includes FitCore Pro.
Prices in USD. Subscriptions are billed through the Shopify Billing API and appear on your regular Shopify invoice.
Yes. Dresses, tops, skirts, women's tailoring and bra sizing are all covered, sized from bust, waist and hip with UK, US, EU, FR and IT conversions.
No. They enter height, weight, age and build — no tape measure — and the live 3D avatar does the rest.
A try-on photo is processed once via the FASHN API to create the preview, then discarded. FitCore never stores it. The result is a preview of the garment in the recommended size, not a guarantee of fit.
No. The widget loads in an iframe only when a shopper opens it, and the floating tab it starts from is a few kilobytes. There are no theme code changes.
A fit line is the cut of a garment — X-Slim, Slim or Tailored. The same nominal size measures differently in each cut, so FitCore applies per-cut offsets: a fuller build may size up in a closer cut. It's the adjustment a fitter makes without thinking.
14-day free trial on every plan.