Three people in Japan, China, and Taiwan jointly developed no Tie Shoelace COOLKNOT, thinking less time would be wasted if you never have to worry about tying your shoelaces again. The product obtained a patent in 2012. Since then, it has been well received by international customers of all ages. Based on a “no tie” and “comfort” concept, the product was developed over two years, starting in 2010. The elastic bump technology holds customized tension through all eyelets, so you won’t need to adjust it or worry about tying them again. The innovative inner rubber core offers enough stretch for you to slip the shoes on and off easily while still being tight enough so that your feet don’t slip. Many athletes also favor it as it allows you adjusting the tension strength for the perfect fit you desire according to the number of bumps.