Display product metafield in collection product loop

I am wanting to display a product metafield within the product loop on a collection page, but haven't been able to get it to show.

On the product page I am using the following code to show the metafield:

   {% if product.metafields["global"]["Region"] != blank %}
      {{ product.metafields["global"]["Region"] }}
   {% endif %}

When I try and use the same code on the collection within the product loop template it doesn't work. Anybody any ideas what I need to change and if this is even doable?