Storely Size
Size charts that match your real inventory.
Connect sizing to your product variants and metafields. When your inventory updates, your size charts update automatically.
Core Features
Built for accuracy, designed for conversion.
Everything you need to deliver trustworthy sizing to your shoppers with zero ongoing maintenance.
Sizes that update themselves from your catalog.
Most size charts are static text typed once and forgotten. When you change, add, or discontinue a variant, Storely automatically pulls the latest options straight from Shopify, keeping your storefront 100% accurate.
Live sync
Cotton crewneck — size chart
Customization is built in, not bolted on.
Adjust fonts, colors, padding, borders, and modal behaviors in a live visual editor with immediate storefront preview. Your size charts feel like an organic part of your theme.
Shoppers add to cart straight from the chart.
Never let shoppers lose purchase momentum. Shoppers click their size in the table and tap “Add to Cart” directly within the modal, instantly picking the exact variant.
Who it's for
Built for the moment a shopper asks “what size do I order?”
Storely Size is built for apparel, footwear, and kidswear merchants — stores where sizing is a real pre-purchase objection and a real return-rate driver.
Apparel & Streetwear
Multi-measurement tables for chest, waist, length, and sleeve. Switch between cm and inches without layout shifts.
Footwear & Shoes
US, UK, EU, and CM conversion tables that keep international buyers confident in their selections.
Kidswear & Accessories
Age, height, and weight based sizing recommendations designed to minimize avoidable return shipments.
Help Center
Straight answers, not marketing copy.
How does variant sync work?
Storely Size reads option values directly from your Shopify product data via Storefront API and metafields, rendering exact values in real time.
Does it slow down my theme?
No. Sizing tables and modal code load asynchronously in a single lightweight bundle with zero jQuery or bulky dependencies.
Can I match my brand styles?
Yes. The Design Studio editor gives you full control over typography, borders, background tints, radius, and popup presentations.
Free to install, ready today.
No credit card, no developer, no risk of the chart drifting from your real inventory — install whenever you’re ready.