Was pretty much completely disappointed by this. The amount of "glow in the dark" is pretty freaking minimal. I mean, I *think* maybe I saw them glow *once*, but that was after standing outside, exposing them to mid-day sun for nearly an hour. When I got back inside and went to a darkened interior room, there was a little bit of glow.

That said, the real reason for the 1-star rating is they lasted less than a month. It seems that the "glow" coating on them is kind of sandy (I mean, tying them felt kinda gross). That sandiness meant that every time you tied or untied them, the laces would wear each place they rubbed against each other. By the end of the second week of wearing them, the part of my laces where the tie/bow was formed was noticeably worn. Not many days after that, the outer covering-layer completely gave out. Fortunately, I happened to have brought another pair of laces with me (was on longish vacation and always try to pack things like extra laces) and was able to switch them out when the first lace failed.