Breadcrumbs are a navigation system used to show a user's location in a site or app.
Breadcrumbs are an alternative way to help users orient themselves. They're a useful addition to, but shouldn’t replace, the main navigation on a page.
Use breadcrumbs for nested navigation, with each item acting as a link. They show the hierarchical progress from the highest item level to the lowest, one step at a time. This typically starts with the product landing page and goes to the current page or content.