Equipped with injection-molded high-impact lens protection, HDO optics and streamlined frame geometry, O Frame 2.0 Pro L extends style and performance to a large-sized fit. Fit: Large Microbag included for storage and lens cleaning Discreet frame notches at temples provide compatibility with most prescription eyewear 50mm adjustable strap with silicone lining for a more secure fit Flexible O Matter chassis conforms to your face comfortably, even in extreme cold All-day comfort of triple-layer face foam with moisture wicking polar fleece lining Injection-molded Plutonite lens material provides 100% protection against UVA / UVB / UVC Optically correct Dual Lens with F3 Anti-fog coating Meets impact requirements based on ANSI Z87.1 and EN 166 standards