Developed for maximum speed and razor sharpness in every detail! Shift MAG gives cyclists, runners and skiers all possible performance benefits, from a super light frame to a nose bridge. The coolest feature is undoubtedly the unique and handy technology for changing the lens. Attach the lens to the magnet on the side to attach the new lens very quickly and precisely at the right place, and you will avoid making fingerprint smears on the lens that will otherwise easily occur. Shift MAG comes with a high contrast ChromaPop lens and a clear lens.