Available in Prizm Lens Technology options Fit: Medium Microbag included for storage and lens cleaning Discreet frame notches at temples provide compatibility with most prescription eyewear Wide 40mm wide adjustable strap with silicone lining for a more secure fit Flexible O Matter chassis conforms to your face comfortably, even in extreme cold Low-profile frame design provides increased visibility and improved helmet compatibility 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 & harmful blue light up to 400nm Optically correct Dual Lens with F3 Anti-fog coating Glare reduction and tuned light transmission of Iridium lens coating (optional)