Elastic lock shoelaceStuck in loose shoelaces? Never again- Keep up with your competitors or enjoy your travel continuously. The locking system secures the shoelaces together so that they won't be loosened. Without lace UPS, you don't have to worry about loose shoelaces any more. These wonderful elastic shoelaces will save you the trouble of tightening, so that you can spend more time doing other meaningful things.Custom fit for your feet - the locking system is heavily locked, so you can lock your elastic laces even during intense movement. Adjustable compression keeps your shoes tight while reducing pressure points, making your feet comfortable and fun to run.One size high quality elastic laces are 48 inches (121.9 cm) long and can stretch to 72 inches (182.9 cm). They are suitable for any lace up shoes, or they can be trimmed to the required length with scissors. Quick installation and easy use. Designed for anyone, it's perfect for people who have trouble wearing shoes (adults, children, children, women and men)Suitable for everyday use these laces turn your sneaker into a pair of lazy shoes. It can not only be mixed with various sports shoes, tennis shoes, canvas shoes, wading shoes, etc., but also accelerate their transition in triathlon, hiking, running, rubber band or other exercises.