Inside your size chart:
Step 1
Click on the image icon located in the top menu
Step 2
Enter the web address where your image is stored. If you don't have a web address, see 'How to store an image'
How to store an image?
If you do not have a web address for your image:
- Open your store's Shopify admin
- Click on Content > Files
- Click on 'Upload files'
- Click on icon: link (this will copy the source address of your image)
- Paste this link in the window 'Insert / Edit image' shown in Step 2