# sizeSystem - Schema.org Property

> Source: https://schema.org/sizeSystem
> Extracted: 2026-02-16T22:00:55.989Z

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A Schema.org Property

*This term is in the "new" area - implementation feedback and adoption from applications and websites can help improve our definitions.*

The size system used to identify a product's size. Typically either a standard (for example, "GS1" or "ISO-EN13402"), country code (for example "US" or "JP"), or a measuring system (for example "Metric" or "Imperial").

#### Source

[https://github.com/schemaorg/schemaorg/issues/2811](https://github.com/schemaorg/schemaorg/issues/2811)