Liquid Template Variables - type
From Spiffy Stores Knowledge Base
The Liquid template variable type has the following attributes:
Returns the unique internal number for the product type.
This is normally only for internal usage.
Returns the name of the product type.
This is the product type handle. The handle uniquely identifies the product type in the URL address.
The handle is usually the product type's name in lower case with all blanks replaced by a dash. "running shoes" would have the handle "running-shoes".