I love these laces. I have them in colors to match my many running shoes. I often get compliments, since they look sharp and are so easy to adjust. They are great for people in larger bodies, or with cognitive issues, children, or people who do triathlons - which require quick changes.Just a note - they are difficult to get through the eye-lets if you have Adidas. But I had no issues with my Brooks, Columbia, Asics. Helpful hint - use pliers to close the clasp when you are done.A small screwdriver can be used to open it again, if you want to put them on different shoes, or shorten them. Also - these laces are long enough to put in women's size 7 hiking boots, no need to get the boot laces.I also have Lock Laces and RJ sport, but the Nathan Run Laces are my favorites. The spring loaded clasp is not overly bulky, and works well. I did have one pair that had a manufacturing defect, and Nathan replaced it. So their customer service is great too.