From your dashboard, click on Store Management (3rd Item on the left-hand side menu) 

Click on Products
​This is the 4th item on the left-hand side menu

Select Product 

Search for the product you would like to print a label for. 

You can search for a product by name or SKU

Select Product & Print Label 

Click on the product, a menu will pop up which will allow you to complete the next step. 

Select the “Print Label” option from the menu.