Read the full guide: https://learn.adafruit.com/magnetic-shoelaces/overview

In this project we’ll show you how to 3d print your own magnetic shoe lace closures. This can be really useful for anyone with dexterity problems, or if you just want to make tying your shoes a whole lot easier.

Strong neodymium magnets help keep your laces together while running, walking or even working out. And after a long day on your feet, the magnets are easy to detach.