Tying your running shoes is so simple, yet so many runners do it incorrectly.

Stay away from looseness and retying, especially with crooked bows—sitting vertical from ankle to your toes—are the visual giveaway.

To keep your laces nice and snug, you need to fashion a reef knot, where you tie the starting knot in one direction, and the finishing bow in the other. Reef loops fall gracefully to the left and right sides of the shoe.

Follow the chart below to see if you’re lacing your shoes correctly for every run.