They work as advertised; durable, waterproof, etc. I'm tough on boots, but haven't even had the chance to put these through their paces because at least one eyelet on each boot was poorly made and has shredded my laces after just a few months of use.

I'm going to attempt to smooth out the interior to the eyelet with a round file or rotary tool and get a new pair of laces to see if that fixes the issue.