Just lace, link and lock ONCE to turn your sneakers from lace-up to slip-on shoes. Highly stretchable silicone shoelaces provide ultimate support and comfort even in repeated intense workout conditions. It even works with different lacing ways to present your sneakers in a cool style! With secure link-and-lock design, they won’t pop out even walking, jogging, running, jumping and so on. From now on, NEVER worry about tripping over by untied shoelaces.