I’ve taken the Julbo Stunts on long alpine days in Rocky Mountain National Park and big rock climbing days in Red Rocks, Nevada. The frames have held up well as did the lenses through the falling ice and blowing sand on these missions. A feature of note that really stood out to me were the clarity of the lenses. I also found the fit around the head and on the nosepiece to be very comfortable. I don’t usually like rock climbing with glasses on but regularly kept these on during tough pitches. I’m particular with the fit and style of my glasses and I’ve been very happy with my Julbo Stunts.