The Smith Shift MAG sunglasses give cyclists and runners every performance advantage possible when it comes to speed. They feature MAG technology, which enables quick, fingerprint-free lens changes. The superlight 5-base frame includes two-position nose piece and no-slip temples, giving you a secure fit when you’re going to your fastest. These sunglasses come with one clear lens as well as a colour enhancing ChromaPop™ lens, the first for low light overcast days or rides with heavy tree canopy and the second to bring out the details on forested trails.