I've hiked the Grand Canyon, the Smoky Mountains, Red Rocks and all around Ontario, Canada in these hikers for the past 3 years - BEST HIKING SHOE I'VE EVER OWNED. They are extremely comfortable, durable, breathable, non slip and tough as nails. I've put these through hell the past few years and they just keep going. It's not often I find a product that actually stands up the way they advertise. In fact, I've never left a product review for anything else in my life - but these deserved it. Thank you KEEN.