The new KOO Demos are a contemporary performance cycling sunglass that deliver impressive panoramic viewing angles with Zeiss Anti-reflection lens tech giving unrivalled clarity. The large composite frame accommodates a broad, single Carl Zeiss lens that allows for incredible panoramic vision with unmatched optical acuity. The market leading anti-reflective technology employed by Zeiss greatly improves the efficiency of the lenses. The coating eliminates reflections from the front and back surfaces of the lenses meaning your eyes receive the most light possible, improving contrast and definition and reducing eye strain. Being a performance piece, the new Demos feature a well considered venting design to counter the dreaded fogging. The frame is reinforced in several 'cut-out' areas where the frame sits behind the lens and where there are gaps left between lens and frame at the bottom. Combined with 2 additional vents at the top of the glasses, this construction engages the airflow between frame and lenses and thus keeps the rider's view crystal clear. By integrating the venting in this manor it also adds to the overall aesthetic in typical Italian fashion. Like most KOO eyewear, the Demos come with the company's 2 position adjustable nose piece for dialling in your fit and comfort. In addition the frames feature Anti-slip MEGOL elastomer temple inserts which provide added grip and comfort, particularly when moist with sweat or rain.