Size Chart & Fit Guide Popup for Shopify

Fewer sizing questions and fewer returns start with a clear size guide. A small “Size Guide” link sits next to your product form and opens a popup with your chart.

Build the chart as a table right in the theme editor, with a row per size and up to four columns you name yourself, like Chest, Waist or EU size. Already have a designed chart? Upload it as an image instead. If you add both, the image is shown.

The popup closes with the X, the Escape key or a click outside, and it looks right everywhere: a centered card on desktop and a bottom sheet on mobile. It picks up your theme's fonts, and accent, border and table colors are all editable. One Liquid file, no app.

Requirements

One Liquid section file. No app, no backend, no database.

Compatibility

Works with any Online Store 2.0 theme, including Dawn and third-party themes. Added as its own section next to your product form.