Magnetic lens for our goggles model FLIP. The XE2 lens improves your vision in the snow by boosting contrast, defining colors better, reducing glare, improving depth perception, and adapting well to different lighting conditions.Magnetic lens attachment technology that makes it easy to switch between lensesDual-layered Grade 1 optical-quality polycarbonate lensAnti-fog and anti-scratch coating with 100% UV400 protectionLens VLT 22% (green mirror), 19% (silver mirror), 17% (grey), (16-53%) VLT(XEp photochromic version)