size_system: Definition

With the 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.

When to use

Optional for each product

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

Format

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

Supported values	`AU` `BR` `CN` (China) `DE` `EU` `FR` `IT` `JP` `MEX` `UK` `US`
Repeated field	No

File format	Example entry
Text	`US`
XML feeds	`<g:size_system>US</g:size_system>`

To format your data for Content API, see the Content API for Shopping.

Guidelines

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

Minimum requirements

These are the requirements you'll need to meet to show your product. If you don't follow these requirements, we'll disapprove your product and let you know in Diagnostics in 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 you submit can't be used.

Best practices

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

Submit the size system for all apparel products. By submitting your product’s size system, you can help ensure that the size is shown correctly.
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 attribute. Along with the size system, make sure to submit the specific size of your product using the size attribute.
Submit the size_type attribute if relevant. If your product also has a size type, submit the size_type attribute.
Submit the gender attribute if relevant. To help show your product in the right search results, also submit the gender attribute.

Examples

Product	Skater dress
Target country	UK
`title`	Black Skater polka dot dress, 10
`size_system`	UK
`size_type`	petite
`size`	10
`gender`	female

Product	Tennis shoes
Target country	US
`title`	White Tennis shoes, 8.5
`size_system`	US
`gender`	male
`size`	8.5

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