Lock Laces® are the original no-tie elastic shoelace with over 5 million pairs sold worldwide. Our Lock Laces® were originally designed to help runners shave seconds off their transition times, and have expanded to fit the needs of a variety of individuals, from athletes and runners to busy moms on the go. Lock Laces® are one-size-fits-all, quick to install and easy to use. Most importantly, Lock Laces® are guaranteed to last the lifetime of one pair of lace-up tennis shoes. Runners love the adjustable tension and stretch-fit comfort that our laces offer. Just dial in the tension before a run and Lock Laces® will do the rest. Our unique double-eyelet lock ensures that our laces conform to your foot for a custom fit, while added compression reduces discomfort so you can perform your best. We guarantee that once you try Lock Laces®, you’ll never go back to traditional shoe laces.