Oh, they're not proper Sports snenius that's next on my list of running purchases. These are a pair of normal shades from Nouveau Regarde' believe it or not. They fit me perfectly and have seen me through all of my sunny running so far. They are so comfortable I forget that I'm wearing them and I never have to re-adjust them at all. Amazing given that I actually got them for free with another purchase was told I could choose a pair when I got to the till and I chose in seconds having tried them one just once. I genuinely thought they'd be put into the bag for the charity shop when I got home but they turned out to be just perfect for running! I wish I had bought another pair now!