What is Breadcrumb Navigation? -Clickipedia

What Breadcrumb Navigation is: A navigation system on your website, which illustrates to visitors which page they are on and how they arrived there.

What Breadcrumb Navigation looks like: 

Home >> Apparel >> Men’s >> Footwear >> Boots

Keep in mind: Although the point of breadcrumb navigation is to increase usability of your site, this tactic isn’t always necessary. By A/B testing, you can discover which style of navigation best resonates with your visitors, reduces friction and helps to increase conversions.