I wore them for about 6 hours today and the laces never came undone. Their coated leather laces, and have an almost rubbery feel, so they grip together really well. My only gripe about them is the laces are actually attached to the shoes. I got home and realized they gave me an extra pair of laces for the desert boots. I thought I was gonna have to go back to LV and swap them, until I realized the laces don't come off and there aren't any extra laces.