size_system [size_system]: Definition

With the size_system [size_system] attribute you can explain which country's sizing system your product uses. This information helps create accurate filters, which users can use to narrow search results. The sizing system that you submit will affect search, filtering, and how variants are shown in your ad.

When to use

Optional for each product

If you submit a size through the size [size] attribute, submit the size_system [size_system] attribute to explain which system you're using. 


Follow these formatting guidelines to make sure that we understand the data that you're submitting. 

Supported values
  • AU
  • BR
  • CN (China)
  • DE
  • EU
  • FR
  • IT
  • JP
  • MEX
  • UK
  • GB
Repeated field No
File format Example entry


XML feeds <g:size_system>GB</g:size_system>

For format API information, please see Content API for Shopping.


Follow these guidelines to make sure that you submit high-quality data for your products.

Minimum requirements

These are the requirements that you'll need to meet to show ads for your product. If you don't follow these requirements, we'll disapprove your product and let you know on the Diagnostics page of your Merchant Center account. 

  • There are no minimum requirements for this attribute. Keep in mind that you still need to follow the formatting guidelines or the information that you submit can't be used.

Best practices

These are best practices that can help you go beyond the basic requirements to optimise your product data for performance. 

  • Submit the size system for all clothing products. By submitting your product's size system, you can help ensure that the size is shown correctly in your ad.
  • Submit the correct system for each product. If you have different products each with different size systems, make sure to submit the correct size system. If you don't submit a size system, we'll use the standard system for your target country, which might not be right for your product.
  • Submit the size [size] attribute. Along with the size system, make sure to submit the specific size of your product using the size [size] attribute.
  • Submit the size_type [size_type] attribute if relevant. If your product also has a size type, submit the size_type [size_type] attribute.
  • Submit the gender [gender] attribute if relevant. To help show your ad for the right search results, also submit the gender [gender] attribute.


Product Skater dress
target country [target country] UK
title [title] Black skater polka-dot dress, 12
size_system [size_system] UK
size_type [size_type] petite
size [size] 12
gender [gender] female


Product Tennis shoes
target country [target country] GB
title [title] White tennis shoes, 9.5
size_system [size_system] GB
gender [gender] male
size [size] 9.5

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