I have had my Danner zip up pronghorns for around 3-4 years and am just now replacing the laces. They probably needed replaced some time ago but they have managed to hang on somehow. My wife bought soem aftermarket laces that I knew would not hold up as well. I saw these and bought them. I have faith in Danner products and must say that I have faith in LaCrosse footwear as well. Both great products and companies that stand behind them.