Get ready for a new version of SmartSize

SmartSize will launch in 10 days a new version of the size chart popup. The new size chart will be looking better and is optimized for theme compatibility.

To make sure that your store is ready for the upgrade, please make sure that you have added your SmartSize block into your product layout inside your Shopify Theme.

Follow the steps below if you are unsure how to do this.

Getting ready…

Let’s ensure that you have added your SmartSize block

Is your SmartSize block included in your product layout?

Yes? Great, you are ready for the migration 🥳  You don’t need to do anything else.

If not, please follow the steps below before the 25th of August ⬇️ 

✔️ Select Sales Channels > Online Stores > Themes

✔️ Go to your Shopify admin page

✔️ Select ‘Customize’

✔️  Search the product for which you created the size chart in Step 2. Open it.

✔️ On the left menu, select ‘Add block’

✔️ Select your ‘SmartSize’ (sizefox) block

✔️ Drag and drop the block in the position that you wish to have

✔️ Click save

Important: You do not need to add a block in every product. You only need to add the block one time. This will modify the product layout.

My theme does not allow me to add a block into my product page

Can’t you find the option to add the SmartSize block in your Shopify theme? Follow the steps below to add a line of code to your theme. If you do not feel comfortable doing this, send us an email and we will do this for you

✔️ Go to your Shopify admin panel

✔️ Select Online Store and Themes (1)

✔️ Click on Actions (2)

✔️ Click on Edit code (3)

✔️ In the search bar, write ‘product'(4)

✔️ Select the relevant file: For Online Store 2.0: {/} main-product.liquid . For other Shopify themes: {/} product.liquid , {/} product-template.liquid or other files depending on your file structure (5)

✔️ Open the file and insert the code snippet (see below) (6)

✔️ Important for step 6 Insert the code snippet inside the <section></section> tags and before a <div> tag

✔️ Save the file (7)

✔️ Test on your store and adjust the position of the snippet if needed

If you still need support do not hesitate to contact us

Send us an email with your question to
Please write in the email the url of your Shopify store. Example: