Check out the video of [Pentland_Designs] Shoelace locks after the break. For more shoe-tech, check out these LEGO self-lacing shoes, or this teardown of Nike’s self-lacing offering.

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 ...

What are the extra lace holes on running shoes for? We’re here to unravel the mystery and teach you how to tie a heel lock to secure your feet and ankles on the trail.