On my second pair since my first pair got stolen. Great for all kinds of activities: running, hiking, skiing, biking, and definitely cool enough to wear around town or to work. I have a small to medium sized face and found that these fit better than the Half Jacket frames. Taking out/cleaning/changing the lenses is extremely easy. When I bought them, the Oakley rep said that the rubber on the nose and temples actually get gripper when they are wet (ie sweat). I don't know if she was giving me a load off nonsense but I will say that the grip is very good. Make sure to only use the cloth bag to wipe the lenses so you don't scratch the lenses.