The Line Miner goggle was created with the purpose of providing the ultimate in peripheral vision, with a cylindrical-style design. We were able to pull the goggle in closer to your face than ever before, allowing for incredible downward and side-to-side periphery. With a large-sized t, Line Miner is optimized for a wide variety of faces and is engineered to t perfectly with most helmets.a Fit: Largea Microbag included for storage and lens cleaninga Discreet frame notches at temples provide compatibility with most prescription eyeweara Wide 50mm wide adjustable strap with silicone lining for a more secure fita Flexible O MatterA(R) chassis conforms to your face comfortably, even in extreme colda Low-profile frame design provides increased visibility and improved helmet compatibilitya All-day comfort of triple-layer face foam with moisture wicking polar fleece lininga Injection-molded PlutoniteA(R) lens material provides 100% protection against UVA / UVB / UVC & harmful blue light up to 400nma Optically correct Dual Lens with F3 Anti-fog coatinga Glare reduction and tuned light transmission of IridiumA(R) lens coating (optional)a Meets impact requirements based upon ANSI Z87.1, EN 174, and ISO 18527-1