These worked well for a few weeks. I loved not having my shoelaces come untied during my busy work day. They were really snug at first. I found some alternative lacing techniques on their website that really helped them fit better.  However, in less than a month eight of these have snapped. I had three snap in half during a shift at work. So, I was left struggling to keep my shoes on my feet while running around and taking care of patients. I almost ordered another pack, but I think I will save my money for something better.