Providing Measurements

To enable Virtusize for a product, the Virtusize Widget needs to know that product’s measurements.

The Virtusize button will only be shown when the integration snippet can find the measurements for that product in the Virtusize database.

The product and its measurements are identified by the Product ID, which should be an identifier that identifies the product regardless of size. If possible, the Product ID should also be specific for different colors.


The Product ID must match across our database, Product Page Script and Order Confirmation Page Script, see Setting the Product ID.

There are four main ways of providing measurements to Virtusize:

Spec sheet service

If you are a brand with spec sheets of your products and a Virtusize customer with a Business or Enterprise level account, you can provide measurements to Virtusize simply be sending spec sheets to Virtusize. The Virtusize Garment Data team will extract the relevant data and upload it for you to our database.

Web Interface

The basic way of providing measurements is via our web admin. This can be done to provide measurements one by one.

  1. Login into our admin with your credentials
  2. Navigate to products > add product
  3. Create a new product using the provided form

Product menu

Product menu

New product form

New product form

Bulk Upload

Another way of providing measurements is via the bulk upload, using our Excel template. This option is most suited if you are a medium sized retailer or single brand store with seasonal collections.

  1. Login into our admin with your credentials
  2. Navigate to product > bulk upload
  3. Download the excel template
  4. Populate the excel template with measurements
  5. Upload the file via the bulk upload form

Bulk upload screen

Bulk upload screen

Excel template

Excel template

Bulk upload confirmation

Bulk upload confirmation

Product Feed

This is similar to Pricerunner and Kelkoo feeds, but with a focus on product measurements. The major difference is that in this case, the feed must only return information about one product, and not a list of products.

This feed option is suitable if you are a large store with an internal measurement database that cannot be exposed as an API.


The feed must return its data using the UTF-8 encoding.

How it works

When you integrate with Virtusize, the integration snippet only displays the widget button if the measurements are defined for a product. Each product is identified by the product id. If the product does not have registered measurements, we can issue a request to a URL provided by you to get the measurements of a product (the feed).

The requests will be sent out by our servers only and the results will be cached. Additional requests may be issued periodically to get updates.

The feed URL must provide details and measurements about a product given a product id. If no product is found for given product id the feed must return a 404 status code.

Example URL:

Example URL 2 (REST):


It does not matter how the URL is formed, as long as the product id is part of the URL or the query.

Product feed integration example

In order to use the product feed, the integration snippet must provide the id as well as the version variables in the product data, lines 7 and 10:

 <!-- Virtusize Integration -->
 !(function(a,d,e,b){var f;a.Virtusize=b;a[b]=a[b]||[];a[b].env=null!=a.vsEnv?a.vsEnv:"production";a[b].url=null!=a.vsUrl?;a.vsEnv=void 0;a.vsUrl=void 0;a[b].methods="setApiKey setRegion setLanguage setWidgetOverlayColor addWidget ready setMobile on setAvailableSizes setSizeAliases addOrder addFindByFit setUserId".split(" ");a[b].factory=function(c){return function(){var;d.unshift(c);a[b].push(d);return a[b]}};var g=a[b].methods;var c=0;for(f=g.length;c<f;c++){var h=g[c];a[b][h]=a[b].factory(h)}a[b].snippetVersion="4.1.0";c=d.createElement(e);d=d.getElementsByTagName(e)[0];c.async=1;c.src={production:"",staging:"",japan:"",korea:"",local:"//"+a[b].url+"/integration/v4.source.js"}[a[b].env];"vs-integration";d.parentNode.insertBefore(c,d)})(window,document,"script","vs");

     productId: "PRODUCT_ID",
     buttonSelector: "BUTTON_SELECTOR",
     productImageUrl: "PRODUCT_IMAGE_URL",
     productVersion: "PRODUCT_VERSION"
 <!-- End Virtusize Integration -->


The PRODUCT_ID and PRODUCT_VERSION product data parameters must be dynamic for each product.


The PRODUCT_VERSION variable can be an integer, a date, or even a unix timestamp, as long as it changes when the product measurements change.

JSON format

The feed must return data as valid JSON.

Example feed

Example request:


Example response:

  "id": "123456abc",
  "type": "dress",
  "name": "Dress - Summer dream",

  "sizes": {

    "small": {
      "height":        88,
      "bust":          41,
      "waist":         37,
      "hip":           42,
      "sleeveOpening": 18,
      "hem":           45,
      "waistHeight":   39

    "medium": {
      "height":        90,
      "bust":          43,
      "waist":         39,
      "hip":           44,
      "sleeveOpening": 20,
      "hem":           47,
      "waistHeight":   41

    "large": {
      "height":        92,
      "bust":          45,
      "waist":         41,
      "hip":           46,
      "sleeveOpening": 22,
      "hem":           49,
      "waistHeight":   42

Product attributes

required - String/Number - The per retailer unique product identifier. Must be the same as the id used to query.
required - String - Product type identifier, in camelCase, refers to product type section in API reference.
required - String - Name of the product, will be visible to customer in Widget.
required - Object - A JSON object containing all available sizes. A dict of dicts, the keys in this object are size names as strings. The values are measurement objects, containing a collection of measurements and their values.

Measurements object

Each product size is represented as a measurements object. The measurements object is also a JSON object. The keys are the measurement names in camelCase. The values must be numeric integer or floating point values in the unit of your choice.


The unit of measurements is configured on a store by store basis and the default is centimeters. We also support millimeters and inches in decimal format. Get in touch with us to configure this for your store.

Please refer to Product Types for details about measurements for each product type.

Feed validation

To validate your feed, you can use our feed tester URL:


Or you can use the Feed tester GUI in our admin.