The frameless design of the Axis features an elegant new quick-change system and a sleek shape. Two self-positioning magnets facilitate lightning-fast lens changes, while four locking pins securely hold the lens in place within the frame. The Medium Size frame is suitable for a wide range of face shapes and offers an impressive wide EXV field of vision. The Axis includes two of the best lenses on the market, featuring high-quality VIVID lenses from Zeiss Optics (one for sunny conditions and one for poorer weather conditions). The EVAK ventilation technology and anti-fog coating keep moisture buildup under control.