The FLIP snow goggles are fusing the wide field view (180°) from a frameless goggle with a solid frame and ventilation system. The FLIP XEp goggles feature a photochromic lens that automatically adjusts to all weather conditions. It changes from a royal blue lens in sunny conditions to a transparent purple in overcast weather within seconds. Dual-layered Grade 1 optical-quality polycarbonate lensAnti-fog and anti-scratch coating with 100% UV400 protectionAdaptable strap with silicone lining for a better fit on most helmetsPhotochromic lens VLT 16% (sunny conditions) to VLT 53% (overcast weather)Magnetic lens attachment technology that makes it easy to switch between lenses for style switches