If you sell clothing items that require customers to know their size before they make a purchase, you can add a custom size chart to your product page. This instruction shows you how to setup the size chart.
Enable size chart #
First, you need to create a page for your size chart content. From your Shopify admin, go to Online Store > Pages then click Add page. Please check out the official Shopify document in case of need.
You can enable size chart on product page in Product template block.
There is an option named Pop-up size guide, and here’s to choose the page that you just created. If a product is eligible, a size chart button should display below the size options. When clicked, it opens a popup that represents the page’s content: