What the brief says
- One elegant size chart in a clean popup
- Brand fonts, brand colors, flawless on mobile
- Live before the next campaign
Agency sales kit · Size charts at scale
Build awesome size charts. Leave the backend to us.
Design the storefront your way — SmartSize manages every chart behind the scenes. Connect via MCP and use our skill to build size charts straight from your AI tools. One walkthrough gets you the deck, demo store and a free agency workspace.
The part briefs miss
A size chart looks simple. A size chart program isn’t.
Most projects start with “just add a nice size guide”. Then the catalog arrives. Large stores don’t run one size chart — they run dozens or hundreds, and someone has to keep every one of them correct, on-brand and on the right products.
What launch actually needs
- 5, 50 or 500 size charts — per fit, category, vendor or supplier
- Every chart assigned to the right products by collection, type, vendor or tag
- Bulk import from spreadsheets, images or existing pages
- Unit conversion and every storefront language handled automatically
- Updates the merchant can make without a dev ticket
SmartSize is the backend that manages all of it — with a size chart UI your team can shape freely.
Your call on design
Out of the box, or down to the last pixel.
Design-led clients should never have to choose between shipping fast and looking right. SmartSize gives your team both paths — and switching later costs nothing.
Ship the default
A polished, mobile-first size chart that looks great with zero design work. Built for Shopify, fast on any theme, live in an afternoon.
- Ready-made style presets that flatter most brands
- Dedicated mobile layout out of the box
- No code — installed and live the same day
Design every detail
For the client who reviews every pixel: take over the template and make the size chart feel like part of the theme, not an app.
- Modular block editor — tables, scales, callouts, media and text
- Typography, colors, spacing and corners, all yours to set
- Custom CSS for the last 1% only your designer will notice
Beyond the chart
Add the AI Fit Quiz when the brief asks for more than a size chart.
A Find My Size button that asks a few questions and recommends one size — then remembers the shopper’s measurements across the whole catalog. It is still new to most merchants, which is exactly why agencies pitch it: same SmartSize backend, no second integration, and a demo that sells itself.
Explore the AI Fit QuizWhat we hand you before the client call.
You should not have to invent the story. We give you the material, the example store, and the setup environment so the first conversation is easy.
Ready-to-share client deck and downloadable PDF
Live demo store you can open during calls
Talking points for size charts, AI Fit Quiz, returns, and conversion
Free agency workspace on your own test store
Product-team support when a client deadline is close
Optional co-pitching when a SmartSize voice helps the call
Three short steps from intro call to first client.
We keep the path practical: see it, show it, then launch it with help from us.
- 01
Book a 30-minute walkthrough
Bring the client brief, edge cases, and launch deadline — including the catalog that needs a few hundred size charts. We’ll show you exactly how SmartSize fits.
- 02
Use the kit in your next call
Share the deck, open the demo store, and use the talking points we provide.
- 03
Bring us the first client
We help with install, bulk size chart import, fit quiz setup, translations, and launch support.
How we support agency work.
When a client deadline is real, you need product answers fast. We stay close enough to help without taking over your client relationship.
Priority support
Agency questions go to people who can actually fix things, not a generic queue.
Feature-request friendly
Send the client need. We scope what is realistic and ship the requests that fit.
Co-pitching when it helps
Your team stays in the lead. We can join to answer product questions.
Roadmap visibility
We share what is coming so you can plan client work around it.
White-glove first setup
For clients you bring in, we can help with the first chart import and quiz setup.
Honest fit checks
If SmartSize is not right for a brief, we will tell you before you spend political capital.
Put SmartSize in your next sizing conversation.
We are happy to jump on a call, help in English, French, German, Italian, Portuguese or Spanish, and answer support chats in any language.
Prefer to look around first?Open the demo store