> ## Documentation Index
> Fetch the complete documentation index at: https://developer.worldly.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Get Size

Use this endpoint to retrieve the list of valid sizes for a given product category. The `productCategory` path parameter should be a `categoryExpansionId` value obtained from the [Get Categories](/api-reference/pic/product-attributes/get-categories) endpoint.

### Implementation Details

* **Category-dependent**: Available sizes vary by product category. For example, "Apparel" categories may return sizes like `"Adult"`, `"Child"`, `"Infant"`.
* **Response format**: Returns an array of size strings (e.g., `["Adult", "Child"]`).


## OpenAPI

````yaml api-reference/openapi/french-eco.json GET /taxonomy-size/{productCategory}
openapi: 3.0.0
info:
  title: pic-api
  version: 1.0.0
servers:
  - url: https://api-v2.production.higg.org/pic-api/v1
    description: Production
  - url: https://api-v2.demo.higg.org/pic-api/v1
    description: Demo
security:
  - sec0: []
    sec1: []
paths:
  /taxonomy-size/{productCategory}:
    get:
      summary: Get Size
      operationId: GetSize
      parameters:
        - in: path
          name: productCategory
          required: true
          schema:
            type: string
      responses:
        '200':
          description: Ok
          content:
            application/json:
              schema:
                items:
                  type: string
                type: array
components:
  securitySchemes:
    sec0:
      type: apiKey
      in: header
      name: x-api-key
    sec1:
      type: apiKey
      in: header
      name: x-developer-request-token

````