Navigation Categories
In the React PWA Reference Storefront, the catalog includes sample data organized into categories. The navigation bar supports displaying categories in two levels, where each top-level category can have multiple secondary-level categories.
The following image shows the Product category with its secondary-level categories, such as Blenders and Coffee Grinders:
In your store, you can create as many categories as you need. Shoppers who are browsing for a product can either use the navigation bar or enter a category name in the search bar.