Not necessary if you're using the Kiwi App Extension
This fix only applies if you installed Kiwi using the snippet/manual method.
Why the sizing chart loads late
If the sizing chart or “Find My Size” button appears several seconds after the page loads, it is usually because your theme loads scripts asynchronously.
That means the theme waits for the entire product page to load first—including large images or videos—before loading the Kiwi script.
If your product page is heavy, this can delay when Kiwi appears.
How to fix it (manual/snippet installations only)
To load Kiwi earlier on the page, add this script right after the </body> tag in your layout/theme.liquid:
<script async src="https://app.kiwisizing.com/web/js/dist/kiwiSizing/plugin/SizingPlugin.prod.js?v=327"></script>
This tells the browser to start loading Kiwi sooner, which improves speed and reduces delays.
Need help?
If you’re not comfortable editing theme code, or you're unsure whether you're using the App Extension or manual snippet, just reach out—we can check for you and make the update if needed.