At the speed of sound: the Sonic. The Sonic's sporty focus is reflected in all corners and lenses of the glasses. The Sonic HR V sits firmly on the head. Tight – and yet comfortable. The temple tips are rubberised and the nose pads can be individually adjusted. The fast glasses won't fly off during trail running or on steep mountain bike descents. The Varioflex lens reacts to sunlight, darkening or lightening automatically – depending on the intensity of the UV radiation. Additionally, the lens extends outward to protect your eyes from drafts.