# sizeSystem

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").

## Expected Types

| Type | Description |
|------|-------------|
| [SizeSystemEnumeration](https://schema.org.ai/SizeSystemEnumeration) | Enumerates common size systems for different categories of products, for example "EN-13402" or "UK" for wearables or "Imperial" for screws. |
| [Text](https://schema.org.ai/Text) | Data type: Text. |

## Used on Types

| Type | Description |
|------|-------------|
| [SizeSpecification](https://schema.org.ai/SizeSpecification) | Size related properties of a product, typically a size code ([name](https://schema.org.ai/name)) and optionally a [sizeSystem](https://schema.org.ai/sizeSystem), [sizeGroup](https://schema.org.ai/sizeGroup), and product measurements ([hasMeasurement](https://schema.org.ai/hasMeasurement)). In addition, the intended audience can be defined through [suggestedAge](https://schema.org.ai/suggestedAge), [suggestedGender](https://schema.org.ai/suggestedGender), and suggested body measurements ([suggestedMeasurement](https://schema.org.ai/suggestedMeasurement)). |

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Quoted from Schema.org 30.1, https://schema.org/sizeSystem, under CC BY-SA 3.0. Served by the Org.AI Foundation at https://schema.org.ai/sizeSystem.