Turns out that extra hole helps runners tie their shoes extra tight with a "lace lock" or "heel lock" method. Follow BI Video: On Twitter More from Sports The extra eyelet at the top of running ...

Then, you pull the ends of the lace to tighten the lock and tie your bow through those lace loops rather than on top of the shoe’s tongue. The method is also known as a “lace lock” or ...

Illumiseen provides a helpful tip for runners to prevent these blisters with a “heel lock” or “lace lock” that creates extra friction between the laces at your ankle. Video courtesy of ...