hey, just a heads up--Product Sans is under the Google Restricted license and isn't available for use like this. Google might get pissed.
checkout the link in the comments from the Font API: https://fonts.googleapis.com/css?family=Product+Sans%3A100%2C100i%2C300%2C300i%2C400%2C400i%2C500%2C500i%2C700%2C700i%2C900%2C900i
Thanks for the info, we'll look at what we can do. :-)