USE CASE: Performance eyewear designed for road and MTB cyclists, adventure seekers and cyclocross riders. The Alibi provides maximum visual clarity from its innovative half-frame design, 2 ventilation ports to reduce fogging, and rounded arms for a stay-put fit. NEW MIRROR LENS TECHNOLOGY: Available in Gold Mirror for comfortable, long duration rides in bright light conditions, Copper Mirror for enhanced visibility during medium light level rides, and Fuchsia or Red Photochromic Mirror for road and mountain biking through sunny to cloudy light level conditions. COMFORTABLE NOSE PADS: A soft touch nose pad for superior comfort and minimal distraction. COMPATIBLE WITH OPTICAL CLIP FOR PRESCRIPTION GLASSES: Optical clip allows users to wear the frame with their own prescription lenses. KOO PERFORMANCE EYEWEAR: Since 2016 KOO Eyewear has combined technological excellence, innovative Italian craftsmanship, enhanced optical clarity, and iconic designs, renowned worldwide by elite athletes for its unparalleled visual performance and premium safety protection.