Zenni frames have held up to daily abuse hunting, mountain biking, snowboarding, atv riding, homesteading and whatever else I throw at them. I’m finally replacing my glasses from several years ago only because I scratched the heck out of the lens cleaning with my shirt. I actually ordered the same exact frames I had before and was surprised they still had them. I get the transition lenses so these are my everyday sun glasses too. I even pay $3 to get my custom jay ban logo on them.